{"results":"<div class='relative search-result-item thumbnail-card' data-id='5594' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemFolder' data-type='SharedCollection'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner folder-icon'>\n<div class=\"type-resource type-topic type-folder\"><span class=\"fa-lg banner-outer-icon resource-icon folder-icon resource-icon fa-stack\"><i class=\"fa-solid fa-solid fa-folder-blank fa-stack-1x\"></i><i class=\"fa-solid fa-play mr5 fa-stack-1x banner-inner-icon fa-stack-center\" style=\"transform: translateX(25%);\"></i></span><span class=\"resource-bg\"></span></div>\n<span class='item-count'>\n<span>46</span>\n<span>Items in Topic</span>\n</span>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Crash Course: Physics Topic\" href=\"/collections/crash-course-physics\"><img title=\"Crash Course: Physics\" alt=\"Crash Course: Physics\" class=\"img-responsive resource-img lozad\" id=\"js-collection-thumbnail\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/collection/default.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/332470/large/bwluav9tywdpy2symde2mtaxny0ymjqwmc1nnhpym3kuanbn.jpg?1476723495\" onError=\"handleImageNotLoadedError(this)\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Lesson Planet Curated</span>\n</div>\n<h4 class='resource-title' title='Crash Course: Physics'>\n<a class=\"trk-show-resource\" title=\"Crash Course: Physics Topic\" href=\"/collections/crash-course-physics\">Crash Course: Physics\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - 12th</span>\n<i class='lp-icon fa-regular fa-circle-check'></i>\n<span class='resource-standards'>Standards</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nDr. Shini Somara narrates a 46-video Crash Course Physics course based on the 2016 AP Physics I and II curriculum. Topics covered include linear, circular, rotational, simple harmonic, 2D motion, derivatives, integrals, vectors, Newton’s...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Crash Course: Physics Topic\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=5594\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n<div class='relative search-result-item thumbnail-card' data-id='4499' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemFolder' data-type='SharedCollection'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner folder-icon'>\n<div class=\"type-resource type-topic type-folder\"><span class=\"fa-lg banner-outer-icon resource-icon folder-icon resource-icon fa-stack\"><i class=\"fa-solid fa-solid fa-folder-blank fa-stack-1x\"></i><i class=\"fa-solid fa-play mr5 fa-stack-1x banner-inner-icon fa-stack-center\" style=\"transform: translateX(25%);\"></i></span><span class=\"resource-bg\"></span></div>\n<span class='item-count'>\n<span>9</span>\n<span>Items in Topic</span>\n</span>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Why with Bill Nye! Topic\" href=\"/collections/why-with-bill-nye\"><img title=\"Why with Bill Nye!\" alt=\"Why with Bill Nye!\" class=\"img-responsive resource-img lozad\" id=\"js-collection-thumbnail\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/collection/default.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/341112/large/bwluav9tywdpy2symde3mtiwms0xodm1oc0xynn1nji4lmpwzw.jpg?1512166713\" onError=\"handleImageNotLoadedError(this)\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Lesson Planet Curated</span>\n</div>\n<h4 class='resource-title' title='Why with Bill Nye!'>\n<a class=\"trk-show-resource\" title=\"Why with Bill Nye! Topic\" href=\"/collections/why-with-bill-nye\">Why with Bill Nye!\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>6th - 12th</span>\n<i class='lp-icon fa-regular fa-circle-check'></i>\n<span class='resource-standards'>Standards</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nFind out Why with Bill Nye in a nine-video collection in which he details the science behind NASA's Juno Mission to Jupiter. Although dated, the satellite was launched in 2011 and went into orbit around Jupiter in 2016; the science...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Why with Bill Nye! Topic\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=4499\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1017869' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-instructional-video\"><i class=\"fa-solid fa-circle-play resource-icon\"></i><span class=\"ml-5 relative z-10\">Instructional Video</span><span class=\"ml10 z-10 video-duration\">1:57</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"The Doppler Effect Instructional video\" href=\"/teachers/the-doppler-effect-7th-9th\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"The Doppler Effect Instructional Video\" title=\"The Doppler Effect Instructional Video\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/77606/large/bwluav9tywdpy2symde3mdmymy00mtg3lteydjnyemouanbn.jpg?1490301188\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='The Doppler Effect'>\n<a class=\"trk-show-resource\" title=\"The Doppler Effect Instructional video\" href=\"/teachers/the-doppler-effect-7th-9th\">The Doppler Effect\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>7th - 9th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nNow this is a very good demonstration of the Doppler Effect and how it works. A police car with its siren blazing is filmed as it travels closer and then farther away. The effect is explained through text and an illustration. Good video.\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to The Doppler Effect Instructional video\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1017869\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"The Doppler Effect Instructional video\" href=\"/teachers/the-doppler-effect-7th-9th\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1050394' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-lesson-plan\"><i class=\"fa-solid fa-book resource-icon\"></i><span class=\"ml-5 relative z-10\">Lesson Plan</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Stellar Fingerprints and Doppler Red Shifts Lesson plan\" href=\"/teachers/stellar-fingerprints-and-doppler-red-shifts\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Stellar Fingerprints and Doppler Red Shifts Lesson Plan\" title=\"Stellar Fingerprints and Doppler Red Shifts Lesson Plan\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-pdf.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/331022/large/bwluav9tywdpy2symde2mdgymy0xnzcxmc1nzguxdduuanbn.jpg?1471996557\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>NASA</span>\n</div>\n<h4 class='resource-title' title='Stellar Fingerprints and Doppler Red Shifts'>\n<a class=\"trk-show-resource\" title=\"Stellar Fingerprints and Doppler Red Shifts Lesson plan\" href=\"/teachers/stellar-fingerprints-and-doppler-red-shifts\">Stellar Fingerprints and Doppler Red Shifts\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - 12th</span>\n<i class='lp-icon fa-regular fa-circle-check'></i>\n<span class='resource-standards'>Standards</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nYoung scientists&nbsp;observe the spectra of elements and compare that to the Doppler effect. Hook scholars from the beginning all the way to the extension activities in this 5E-format lesson.&nbsp;\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Stellar Fingerprints and Doppler Red Shifts Lesson plan\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1050394\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Stellar Fingerprints and Doppler Red Shifts Lesson plan\" href=\"/teachers/stellar-fingerprints-and-doppler-red-shifts\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1073170' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-lesson-plan\"><i class=\"fa-solid fa-book resource-icon\"></i><span class=\"ml-5 relative z-10\">Lesson Plan</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Doppler Effect Lesson plan\" href=\"/teachers/doppler-effect-6th-12th\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Doppler Effect Lesson Plan\" title=\"Doppler Effect Lesson Plan\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-pdf.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/406351/large/u2nyzwvux1nob3rfmjaymc0wmi0yn19hdf8zljaylju4x1bnlnbuzw.png?1582844592\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Acoustical Society of America</span>\n</div>\n<h4 class='resource-title' title='Doppler Effect'>\n<a class=\"trk-show-resource\" title=\"Doppler Effect Lesson plan\" href=\"/teachers/doppler-effect-6th-12th\">Doppler Effect\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>6th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nHere comes the sound. After watching a couple videos demonstrating and explaining the Doppler Effect, learners develop their own understanding of the phenomenon. Scholars draw a sound wave and observe how the perception of the wave...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Doppler Effect Lesson plan\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1073170\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Doppler Effect Lesson plan\" href=\"/teachers/doppler-effect-6th-12th\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1057630' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-interactive\"><i class=\"fa-solid fa-hand resource-icon\"></i><span class=\"ml-5 relative z-10\">Interactive</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Doppler Shift Interactive Interactive\" href=\"/teachers/doppler-shift-interactive\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Doppler Shift Interactive Interactive\" title=\"Doppler Shift Interactive Interactive\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/335500/large/u2nyzwvux1nob3rfmjaxny0wns0xmv9hdf8xmc40oc40mf9bts5wbmc.png?1494524940\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>McGraw Hill</span>\n</div>\n<h4 class='resource-title' title='Doppler Shift Interactive'>\n<a class=\"trk-show-resource\" title=\"Doppler Shift Interactive Interactive\" href=\"/teachers/doppler-shift-interactive\">Doppler Shift Interactive\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - Higher Ed</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nEver wonder why a siren sounds different when it's coming toward you than when it's going away from you? It all depends on the motion of the sound waves! The interactive activity demonstrates how the Doppler effect impacts the motion of...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Doppler Shift Interactive Interactive\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1057630\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Doppler Shift Interactive Interactive\" href=\"/teachers/doppler-shift-interactive\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1012651' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-instructional-video\"><i class=\"fa-solid fa-circle-play resource-icon\"></i><span class=\"ml-5 relative z-10\">Instructional Video</span><span class=\"ml10 z-10 video-duration\">4:14</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Is There a Center of the Universe? Instructional video\" href=\"/teachers/is-there-a-center-of-the-universe\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Is There a Center of the Universe? Instructional Video\" title=\"Is There a Center of the Universe? Instructional Video\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/316155/large/cgrmlwnvbnzlcnqymdezmtexny0yndc1mi0ycjz6nnquanbn.jpg?1384723440\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>TED-Ed</span>\n</div>\n<h4 class='resource-title' title='Is There a Center of the Universe?'>\n<a class=\"trk-show-resource\" title=\"Is There a Center of the Universe? Instructional video\" href=\"/teachers/is-there-a-center-of-the-universe\">Is There a Center of the Universe?\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>6th - 12th</span>\n<i class='lp-icon fa-regular fa-circle-check'></i>\n<span class='resource-standards'>Standards</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nThe history of our understanding of the center of the universe is explored through this film. The ideas of Aristotle, Copernicus, Bruno, Descartes, and Herschel are included, as well as the new discoveries that have helped the theories...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Is There a Center of the Universe? Instructional video\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1012651\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Is There a Center of the Universe? Instructional video\" href=\"/teachers/is-there-a-center-of-the-universe\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='671692' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-worksheet\"><i class=\"fa-solid fa-pen-to-square resource-icon\"></i><span class=\"ml-5 relative z-10\">Worksheet</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"The Doppler Effect Lab Worksheet\" href=\"/teachers/the-doppler-effect-lab\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"The Doppler Effect Lab Worksheet\" title=\"The Doppler Effect Lab Worksheet\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/194754/large/cgrmlwnvbnzlcnqymdezmdmzmc05ntmzlxrwamdsdc5qcgc.jpg?1414291239\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='The Doppler Effect Lab'>\n<a class=\"trk-show-resource\" title=\"The Doppler Effect Lab Worksheet\" href=\"/teachers/the-doppler-effect-lab\">The Doppler Effect Lab\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>6th - 8th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nIn this Doppler effect worksheet, students read information about the Doppler effect. Students answer questions as it relates to the pitch and wavelengths of a demonstration simulates what happens with the Doppler Effect.\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to The Doppler Effect Lab Worksheet\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=671692\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"The Doppler Effect Lab Worksheet\" href=\"/teachers/the-doppler-effect-lab\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1017164' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-instructional-video\"><i class=\"fa-solid fa-circle-play resource-icon\"></i><span class=\"ml-5 relative z-10\">Instructional Video</span><span class=\"ml10 z-10 video-duration\">10:04</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Red Shift, Scale of the Universe, Cosmology and Astronomy Instructional video\" href=\"/teachers/red-shift-scale-of-the-universe-cosmology-and-astronomy\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Red Shift, Scale of the Universe, Cosmology and Astronomy Instructional Video\" title=\"Red Shift, Scale of the Universe, Cosmology and Astronomy Instructional Video\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/319452/large/u2nyzwvuc2hvdf8ymdi1lta2lti5x2f0xzexljq3lje54ocvqu0ucg5n.png?1751222861\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Khan Academy</span>\n</div>\n<h4 class='resource-title' title='Red Shift, Scale of the Universe, Cosmology and Astronomy'>\n<a class=\"trk-show-resource\" title=\"Red Shift, Scale of the Universe, Cosmology and Astronomy Instructional video\" href=\"/teachers/red-shift-scale-of-the-universe-cosmology-and-astronomy\">Red Shift, Scale of the Universe, Cosmology and Astronomy\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nThe Red Shift concept can be one of the most confusing in physics. Learners may find it helpful to start with learning more about the Doppler Effect before introducing this video.\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Red Shift, Scale of the Universe, Cosmology and Astronomy Instructional video\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1017164\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Red Shift, Scale of the Universe, Cosmology and Astronomy Instructional video\" href=\"/teachers/red-shift-scale-of-the-universe-cosmology-and-astronomy\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1051278' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-lesson-plan\"><i class=\"fa-solid fa-book resource-icon\"></i><span class=\"ml-5 relative z-10\">Lesson Plan</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Tools to Study Tornadoes and Galaxies Lesson plan\" href=\"/teachers/tools-to-study-tornadoes-and-galaxies\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Tools to Study Tornadoes and Galaxies Lesson Plan\" title=\"Tools to Study Tornadoes and Galaxies Lesson Plan\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-pdf.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/331662/large/bwluav9tywdpy2symde2mdkxni0zmdi1nc0xdxp0etzjlmpwzw.jpg?1474056756\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>NASA</span>\n</div>\n<h4 class='resource-title' title='Tools to Study Tornadoes and Galaxies'>\n<a class=\"trk-show-resource\" title=\"Tools to Study Tornadoes and Galaxies Lesson plan\" href=\"/teachers/tools-to-study-tornadoes-and-galaxies\">Tools to Study Tornadoes and Galaxies\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>8th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nTake your class on an intergalactic journey as they explore the galaxy and various meteorological events taking place in our atmosphere each day. Learners investigate electromagnetic waves and the Doppler Effect before gathering radar...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Tools to Study Tornadoes and Galaxies Lesson plan\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1051278\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Tools to Study Tornadoes and Galaxies Lesson plan\" href=\"/teachers/tools-to-study-tornadoes-and-galaxies\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1058151' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-interactive\"><i class=\"fa-solid fa-hand resource-icon\"></i><span class=\"ml-5 relative z-10\">Interactive</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Doppler Ducks Interactive\" href=\"/teachers/doppler-ducks\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Doppler Ducks Interactive\" title=\"Doppler Ducks Interactive\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/335593/large/bwluav9tywdpy2symde3mduxns0zmdu2ni1pejy5ywmuanbn.jpg?1494870127\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>CK-12 Foundation</span>\n</div>\n<h4 class='resource-title' title='Doppler Ducks'>\n<a class=\"trk-show-resource\" title=\"Doppler Ducks Interactive\" href=\"/teachers/doppler-ducks\">Doppler Ducks\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nThe study of waves is not a quacking matter! Watch as a duck manipulates the behavior of its waves through its motion. Graphs show the frequency and wavelength of the waves.&nbsp;\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Doppler Ducks Interactive\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1058151\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Doppler Ducks Interactive\" href=\"/teachers/doppler-ducks\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1052920' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-instructional-video\"><i class=\"fa-solid fa-circle-play resource-icon\"></i><span class=\"ml-5 relative z-10\">Instructional Video</span><span class=\"ml10 z-10 video-duration\">1:20</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"The Big Bang Theory and Red-Shift Instructional video\" href=\"/teachers/the-big-bang-theory-and-red-shift\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"The Big Bang Theory and Red-Shift Instructional Video\" title=\"The Big Bang Theory and Red-Shift Instructional Video\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/332928/large/bwluav9tywdpy2symde2mtewms0ynjkxnc0ychrwdhuuanbn.jpg?1478039461\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>DoodleScience</span>\n</div>\n<h4 class='resource-title' title='The Big Bang Theory and Red-Shift'>\n<a class=\"trk-show-resource\" title=\"The Big Bang Theory and Red-Shift Instructional video\" href=\"/teachers/the-big-bang-theory-and-red-shift\">The Big Bang Theory and Red-Shift\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nThe universe is getting bigger and bigger! A video features an instructor explaining the Big Bang Theory and gives evidence to show the universe is still expanding. Discussion includes the doppler effect and the red-shift in the light...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to The Big Bang Theory and Red-Shift Instructional video\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1052920\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"The Big Bang Theory and Red-Shift Instructional video\" href=\"/teachers/the-big-bang-theory-and-red-shift\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1053285' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-custom\"><i class=\"fa-solid fa-file resource-icon\"></i><span class=\"ml-5 relative z-10\">PPT</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Sound Ppt\" href=\"/teachers/sound-11th-higher-ed\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Sound PPT\" title=\"Sound PPT\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-pdf.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/72002/large/bwluav9tywdpy2symde3mdmymy0ymjazmi0xzdvkotg5lmpwzw.jpg?1490289864\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Urbana School District</span>\n</div>\n<h4 class='resource-title' title='Sound'>\n<a class=\"trk-show-resource\" title=\"Sound Ppt\" href=\"/teachers/sound-11th-higher-ed\">Sound\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>11th - Higher Ed</span>\n<i class='lp-icon fa-regular fa-circle-check'></i>\n<span class='resource-standards'>Standards</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nBeautiful music doesn't just write itself, but if you ever feel bad about procrastinating, remember that Mozart wrote the overture to Don Giovanni the morning it premiered. Introduce young scientists to the elements of sound including...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Sound Ppt\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1053285\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Sound Ppt\" href=\"/teachers/sound-11th-higher-ed\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1061931' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-instructional-video\"><i class=\"fa-solid fa-circle-play resource-icon\"></i><span class=\"ml-5 relative z-10\">Instructional Video</span><span class=\"ml10 z-10 video-duration\">9:39</span><span class=\"resource-bg\"></span></div>\n<span class='collection-count'>\n<span class='hide-on-hover'>\n<span class='fa-stack'>\n<i class='fa-stack-1x fa-solid fa-folder-blank'></i>\n<i class='fa-stack-1x fa-solid fa-play inner-icon'></i>\n</span>\n<div class='sc-count'>1</div>\n</span>\n<span class='show-on-hover flex items-center'>\n<span class='fa-stack mr-1'>\n<i class='fa-stack-1x fa-solid fa-folder-blank'></i>\n<i class='fa-stack-1x fa-solid fa-play inner-icon'></i>\n</span>\n<span class='inline-block laptop-l:hidden'>\n1\n</span>\n<span class='hidden laptop-l:inline-block'>\nIn 1 Collection\n</span>\n</span>\n</span>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Sound: Crash Course Physics #18 Instructional video\" href=\"/teachers/sound-crash-course-physics-18\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Sound: Crash Course Physics #18 Instructional Video\" title=\"Sound: Crash Course Physics #18 Instructional Video\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/340811/large/bwluav9tywdpy2symde3mtexmy0ymzmzmi0xndrqotv1lmpwzw.jpg?1510614087\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Crash Course</span>\n</div>\n<h4 class='resource-title' title='Sound: Crash Course Physics #18'>\n<a class=\"trk-show-resource\" title=\"Sound: Crash Course Physics #18 Instructional video\" href=\"/teachers/sound-crash-course-physics-18\">Sound: Crash Course Physics #18\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - Higher Ed</span>\n<i class='lp-icon fa-regular fa-circle-check'></i>\n<span class='resource-standards'>Standards</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nWhat makes sound possible? Answer this question while viewing the 18th lesson of a complete Crash Course physics series. After discussing waves in previous lessons, the narrator applies those characteristics to sound waves and their...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Sound: Crash Course Physics #18 Instructional video\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1061931\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Sound: Crash Course Physics #18 Instructional video\" href=\"/teachers/sound-crash-course-physics-18\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='702501' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-worksheet\"><i class=\"fa-solid fa-pen-to-square resource-icon\"></i><span class=\"ml-5 relative z-10\">Worksheet</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Doppler Weather Radar Worksheet\" href=\"/teachers/doppler-weather-radar\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Doppler Weather Radar Worksheet\" title=\"Doppler Weather Radar Worksheet\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-pdf.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/208946/large/cgrmlwnvbnzlcnqymdezmdmzmc03ntktywfzdniylmpwzw.jpg?1414301009\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='Doppler Weather Radar'>\n<a class=\"trk-show-resource\" title=\"Doppler Weather Radar Worksheet\" href=\"/teachers/doppler-weather-radar\">Doppler Weather Radar\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>8th - 10th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nIn this Doppler weather radar worksheet, students read about radar and Doppler weather radar and answer three questions about how they work and the Doppler effect.\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Doppler Weather Radar Worksheet\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=702501\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Doppler Weather Radar Worksheet\" href=\"/teachers/doppler-weather-radar\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='955849' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-custom\"><i class=\"fa-solid fa-file resource-icon\"></i><span class=\"ml-5 relative z-10\">PPT</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Waves Ppt\" href=\"/teachers/waves-8th-12th\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Waves PPT\" title=\"Waves PPT\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-ppt.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/86319/large/bwluav9tywdpy2symde3mdmymy0xnte3lwrzzzdims5qcgc.jpg?1490322522\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='Waves'>\n<a class=\"trk-show-resource\" title=\"Waves Ppt\" href=\"/teachers/waves-8th-12th\">Waves\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>8th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nAn incredibly colorful PowerPoint presents all the facts and definitions about waves that you could need for beginning physical scientists. There are several useful links to online animations of wave action. This may have been produced...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Waves Ppt\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=955849\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Waves Ppt\" href=\"/teachers/waves-8th-12th\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='671690' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-worksheet\"><i class=\"fa-solid fa-pen-to-square resource-icon\"></i><span class=\"ml-5 relative z-10\">Worksheet</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Doppler Effect Worksheet Worksheet\" href=\"/teachers/doppler-effect-worksheet\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Doppler Effect Worksheet Worksheet\" title=\"Doppler Effect Worksheet Worksheet\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/194753/large/cgrmlwnvbnzlcnqymdezmdmzmc05ndkwlte3czrqewguanbn.jpg?1414290965\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='Doppler Effect Worksheet'>\n<a class=\"trk-show-resource\" title=\"Doppler Effect Worksheet Worksheet\" href=\"/teachers/doppler-effect-worksheet\">Doppler Effect Worksheet\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nIn this Doppler Effect worksheet, students answer questions about the movement of stars and the reason we see differences in the color of the stars resulting in a red shift or a blue shift.\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Doppler Effect Worksheet Worksheet\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=671690\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Doppler Effect Worksheet Worksheet\" href=\"/teachers/doppler-effect-worksheet\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='715204' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-lesson-plan\"><i class=\"fa-solid fa-book resource-icon\"></i><span class=\"ml-5 relative z-10\">Lesson Plan</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Computer Interfacing: Frequency Measurement - The Doppler Effect Lesson plan\" href=\"/teachers/computer-interfacing-frequency-measurement-the-doppler-effect\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Computer Interfacing: Frequency Measurement - The Doppler Effect Lesson Plan\" title=\"Computer Interfacing: Frequency Measurement - The Doppler Effect Lesson Plan\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/213996/large/nze1mja0lmpwzw.jpg?1414305033\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='Computer Interfacing: Frequency Measurement - The Doppler Effect'>\n<a class=\"trk-show-resource\" title=\"Computer Interfacing: Frequency Measurement - The Doppler Effect Lesson plan\" href=\"/teachers/computer-interfacing-frequency-measurement-the-doppler-effect\">Computer Interfacing: Frequency Measurement - The Doppler Effect\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>7th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nStudents explore the Dollper effect by finding the frequency and velocity of sound.&nbsp; In this velocity instructional activity, students determine the impulse during a collision by using their data and a software program.\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Computer Interfacing: Frequency Measurement - The Doppler Effect Lesson plan\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=715204\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Computer Interfacing: Frequency Measurement - The Doppler Effect Lesson plan\" href=\"/teachers/computer-interfacing-frequency-measurement-the-doppler-effect\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='1062229' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-instructional-video\"><i class=\"fa-solid fa-circle-play resource-icon\"></i><span class=\"ml-5 relative z-10\">Instructional Video</span><span class=\"resource-bg\"></span></div>\n<span class='collection-count'>\n<span class='hide-on-hover'>\n<span class='fa-stack'>\n<i class='fa-stack-1x fa-solid fa-folder-blank'></i>\n<i class='fa-stack-1x fa-solid fa-play inner-icon'></i>\n</span>\n<div class='sc-count'>1</div>\n</span>\n<span class='show-on-hover flex items-center'>\n<span class='fa-stack mr-1'>\n<i class='fa-stack-1x fa-solid fa-folder-blank'></i>\n<i class='fa-stack-1x fa-solid fa-play inner-icon'></i>\n</span>\n<span class='inline-block laptop-l:hidden'>\n1\n</span>\n<span class='hidden laptop-l:inline-block'>\nIn 1 Collection\n</span>\n</span>\n</span>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Bill Nye Asks Does Jupiter Have A Core? Instructional video\" href=\"/teachers/bill-nye-asks-does-jupiter-have-a-core\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Bill Nye Asks Does Jupiter Have A Core? Instructional Video\" title=\"Bill Nye Asks Does Jupiter Have A Core? Instructional Video\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/341115/large/bwluav9tywdpy2symde3mtiwms0xodg0nc1ydms3djuuanbn.jpg?1512166718\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>THNKR</span>\n</div>\n<h4 class='resource-title' title='Bill Nye Asks Does Jupiter Have A Core?'>\n<a class=\"trk-show-resource\" title=\"Bill Nye Asks Does Jupiter Have A Core? Instructional video\" href=\"/teachers/bill-nye-asks-does-jupiter-have-a-core\">Bill Nye Asks Does Jupiter Have A Core?\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Students</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>6th - 12th</span>\n<i class='lp-icon fa-regular fa-circle-check'></i>\n<span class='resource-standards'>Standards</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nHow do scientists figure out what's inside something without cutting it in half? Space scholars search for answers with a short video from the THNKR Why with Bill Nye! playlist. Bill Nye discusses how the orbital path of the Juno space...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Bill Nye Asks Does Jupiter Have A Core? Instructional video\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=1062229\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Bill Nye Asks Does Jupiter Have A Core? Instructional video\" href=\"/teachers/bill-nye-asks-does-jupiter-have-a-core\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='955838' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-custom\"><i class=\"fa-solid fa-file resource-icon\"></i><span class=\"ml-5 relative z-10\">PPT</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Spectral Lines Ppt\" href=\"/teachers/spectral-lines\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Spectral Lines PPT\" title=\"Spectral Lines PPT\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-ppt.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/300783/large/cgrmlwnvbnzlcnqymde0mdiwns01ntu3lxkzcwhxmi5qcgc.jpg?1391632585\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='Spectral Lines'>\n<a class=\"trk-show-resource\" title=\"Spectral Lines Ppt\" href=\"/teachers/spectral-lines\">Spectral Lines\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>7th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nSlides and slides of emission spectra bring this topic to light for your physics class! Exited electrons returning to lower energy levels is offered as the cause of emission spectra. In summary, viewers learn that we can determine the...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Spectral Lines Ppt\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=955838\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Spectral Lines Ppt\" href=\"/teachers/spectral-lines\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='859389' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-instructional-video\"><i class=\"fa-solid fa-circle-play resource-icon\"></i><span class=\"ml-5 relative z-10\">Instructional Video</span><span class=\"ml10 z-10 video-duration\">0:05</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Can You Hear the Change in Pitch? Instructional video\" href=\"/teachers/can-you-hear-the-change-in-pitch\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Can You Hear the Change in Pitch? Instructional Video\" title=\"Can You Hear the Change in Pitch? Instructional Video\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/276606/large/bwluav9tywdpy2symde1mduwnc02mde3ltfpbdfvngmuanbn.jpg?1430731064\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>New York Science Teacher</span>\n</div>\n<h4 class='resource-title' title='Can You Hear the Change in Pitch?'>\n<a class=\"trk-show-resource\" title=\"Can You Hear the Change in Pitch? Instructional video\" href=\"/teachers/can-you-hear-the-change-in-pitch\">Can You Hear the Change in Pitch?\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nThis video concerning the Doppler effect lasts only about 10 seconds. It begins with the question, \"Can you hear the change in pitch?\" and records from one spot, the sound of a car coming closer, closer, closer, and then passing...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Can You Hear the Change in Pitch? Instructional video\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=859389\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Can You Hear the Change in Pitch? Instructional video\" href=\"/teachers/can-you-hear-the-change-in-pitch\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='463908' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-lesson-plan\"><i class=\"fa-solid fa-book resource-icon\"></i><span class=\"ml-5 relative z-10\">Lesson Plan</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Light and Elements Lesson plan\" href=\"/teachers/light-and-elements\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Light and Elements Lesson Plan\" title=\"Light and Elements Lesson Plan\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-word.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/46101/large/bwluav9tywdpy2symde3mdmymi0ymjg4ny1ud3ntajyuanbn.jpg?1490217787\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='Light and Elements'>\n<a class=\"trk-show-resource\" title=\"Light and Elements Lesson plan\" href=\"/teachers/light-and-elements\">Light and Elements\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - Higher Ed</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nHere is a full-fledged investigation of light waves, the electromagnetic spectrum, and element spectra. Physicists research a scientist that contributed to our understanding of the behavior of light. They take notes on your lecture, and...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Light and Elements Lesson plan\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=463908\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Light and Elements Lesson plan\" href=\"/teachers/light-and-elements\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='373612' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-lesson-plan\"><i class=\"fa-solid fa-book resource-icon\"></i><span class=\"ml-5 relative z-10\">Lesson Plan</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"20th-Century Astronomy Lesson plan\" href=\"/teachers/20th-century-astronomy\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"20th-Century Astronomy Lesson Plan\" title=\"20th-Century Astronomy Lesson Plan\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/133659/large/mzcznjeylmpwzw.jpg?1414233479\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='20th-Century Astronomy'>\n<a class=\"trk-show-resource\" title=\"20th-Century Astronomy Lesson plan\" href=\"/teachers/20th-century-astronomy\">20th-Century Astronomy\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th - 12th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nPupils examine and explain how the distance to nearby stars can be measured by the parallax method, discuss the role of women in the history of American astronomy, form their own opinions of the importance of Harlow Shapley and Edwin...\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to 20th-Century Astronomy Lesson plan\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_other\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=373612\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"20th-Century Astronomy Lesson plan\" href=\"/teachers/20th-century-astronomy\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n<div class='relative search-result-item thumbnail-card no-access' data-id='423024' data-is-require-teacher-acknowledgment='false' data-item-type='CollectionItemResource' data-type='Resource'>\n\n<div class='panel panel-default panel-resource mb-0 border-none'>\n<div class='resource-card-loader'></div>\n<div class='resource-type-banner'>\n<div class=\"type-resource type-lesson-plan\"><i class=\"fa-solid fa-book resource-icon\"></i><span class=\"ml-5 relative z-10\">Lesson Plan</span><span class=\"resource-bg\"></span></div>\n</div>\n<div class='thumb-img-wrap-width-helper'></div>\n<div class='thumb-img-wrap'>\n<a class=\"trk-show-resource\" title=\"Waves, Sound, and Light Lesson plan\" href=\"/teachers/waves-sound-and-light\"><img class=\"resource-img img-thumbnail img-responsive lozad\" alt=\"Waves, Sound, and Light Lesson Plan\" title=\"Waves, Sound, and Light Lesson Plan\" onError=\"handleImageNotLoadedError(this)\" data-default-image=\"https://statictemp.lp.lexp.cloud/images/attachment_defaults/resource/large/missing.png\" data-src=\"//lessonplanet.com/content/resources/thumbnails/139806/large/ndizmdi0lmpwzw.jpg?1414239566\" width=\"315\" height=\"220\" src=\"data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs\" />\n</a><i class='fa-solid fa-image fa-6x thumb-img-wrap-icon'></i>\n</div>\n<div class='resource-info-wrap'>\n<div class='resource-info'>\n<div class='resource-info-top overflow-hidden text-ellipsis'>\n<span class='resource-pool-tag'>Curated OER</span>\n</div>\n<h4 class='resource-title' title='Waves, Sound, and Light'>\n<a class=\"trk-show-resource\" title=\"Waves, Sound, and Light Lesson plan\" href=\"/teachers/waves-sound-and-light\">Waves, Sound, and Light\n</a></h4>\n<div class='resource-meta text-xs text-gray-600 overflow-hidden text-ellipsis'>\n<i class='lp-icon fa-solid fa-user'></i>\n<span class='resource-audience'>For Teachers</span>\n<i class='lp-icon fa-regular fa-graduation-cap'></i>\n<span class='resource-grade'>9th</span>\n</div>\n<div class='resource-description-wrap'>\n<div class='resource-description'>\nNinth graders explain waves in terms of energy transfer and describe their basic types and characteristics. They solve mathematical problems involving wavelength and frequency. Students conduct experiments in reflection and refraction.\n</div>\n</div>\n<div class='resource-actions bg-white'>\n<a class=\"btn btn-default btn-xs text-xs free-access-btn upgrade-btn\" title=\"Get Free Access to Waves, Sound, and Light Lesson plan\" data-track-click=\"Search result free access button\" data-track-label=\"Search Page\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_button_resources_tab\" data-remote=\"true\" href=\"/subscription/new?signup_resource_id=423024\"><i class='fa-regular fa-eye'></i>\n<span class='button-text'>Get Free Access</span>\n</a><a class=\"btn btn-default btn-xs text-xs trk-show-resource\" title=\"Waves, Sound, and Light Lesson plan\" href=\"/teachers/waves-sound-and-light\"><i class='fa-solid fa-list-ul'></i>\n<span class='button-text'>See Review</span>\n</a></div>\n</div>\n</div>\n</div>\n\n</div>\n\n\n","pagination":"<div class='text-center' id='search-pagination'>\n<div role=\"navigation\" aria-label=\"Pagination\" class=\"pagination\"><ul class=\"pagination\"><li class=\"prev previous_page disabled\"><a href=\"#\">&#8592; Previous</a></li> <li class=\"active\"><a rel=\"\" href=\"/lesson-plans/doppler-effect\">1</a></li> <li><a rel=\"next\" href=\"/lesson-plans/doppler-effect/2\">2</a></li> <li><a rel=\"\" href=\"/lesson-plans/doppler-effect/3\">3</a></li> <li><a rel=\"\" href=\"/lesson-plans/doppler-effect/4\">4</a></li> <li><a rel=\"\" href=\"/lesson-plans/doppler-effect/5\">5</a></li> <li><a rel=\"\" href=\"/lesson-plans/doppler-effect/6\">6</a></li> <li class=\"next next_page \"><a rel=\"next\" href=\"/lesson-plans/doppler-effect/2\">Next &#8594;</a></li></ul></div>\n</div>\n"}