Earthquakes, hurricanes, volcano eruptions, and more. To enrich their study of nature's big events, kids map tectonic plates and major earthquake locations, identify emergency response agencies, and storyboard a film about volcanos.

Planning a novel study of Lois Lowry's Number the Stars? Then look no further. A 16-lesson unit guides students through a reading of this awarding-winning novel. Complete with a synopsis of the novel, analysis of its literary themes,...

Students access information at remote sites using telecommunications, identify impacts by reviewing past El Ni??o events, make and use scale drawings, maps, and maps symbols to find locations and describe relationships.

In this video/lesson series we will explore the impact that climate change is having on our planet. Click on the video for related lessons.

Olivier Guyon examines the possibility of finding other planets within astronomical numbers, some potentially rife with life. [6:21]

Explains what the slope-intercept form is and how to find the equation of a line given two points on it. Includes modeled video lesson. [3:32]

Your interstellar police squad has tracked a group of criminals to a cluster of seven planets. Now you must apprehend them before their reinforcements arrive. Of course, the fugitives won't just stay put- they'll try to dodge you by...

In this video, Ariel Anbar describes the characteristics scientists use to determine whether a planet might be habitable. [5:11] Followed by a short quiz and a list of additional resources to explore.

Video presentation by Bill Nye about sundials and what they can reveal about Earth and other planets. [7:50] Includes a short quiz and a list of additional resources to explore.

Energy is neither created nor destroyed - and yet the global demand for it continues to increase. But where does energy come from, and where does it go? This video examines the many ways in which energy cycles through our planet, from...

Mari Foroutan details the features of Mars that are remarkably similar to those of Earth- and those that can only be found on the red planet. [4:30]

This excellent resource explores all of the biomes found on planet Earth! A side menu indicates the world's biomes and provides details on each. Colorful interactive maps, video clips, lesson plans, species profiles, and so much more...

A shooting star crashes onto Earth. It's unstoppable: no matter what you throw at it, it just re-grows and continues its rampage. The only way to save the planet is to cut the entire blob into precise acute triangles, rendering it inert....

Mount Everest has the highest altitude on the planet but how did it get so tall? Educator Michele Koppes looks deep into our planet's crust, where continental plates collide, to find the answer.

Peter Campbell explains how sunken cities are studied by scientists to help us understand the lives of our ancestors, the dynamic nature of our planet, and the impact of each on the other. [4:31]

Although the deep ocean zone seems like an inhospitable and remote corner of the planet, it is actually one of the greatest habitats on Earth. Lidia Lins explores how so many species thrive in this mysterious underwater world. [5:02]

Lake Maracaibo is the stormiest place on the planet. Thunderstorms rage above this massive body of water for up to 200 days of the year, with each ear-splitting event lasting for several hours. Graeme Anderson lists the factors that...

There's a game of Tetris happening on a global scale: The playing space is planet Earth, and all those pesky, stacking blocks represent carbon dioxide- a greenhouse gas that is piling up ever more rapidly as we burn the fossil fuels that...

Our planet was once populated by megafauna, big top-of-the-food-chain predators that played their part in balancing our ecosystems. When those megafauna disappear, the result is a "trophic cascade," where every part of the ecosystem...

Did you know that gold is extraterrestrial? Instead of arising from our planet's rocky crust, it was actually cooked up in space and is present on Earth because of cataclysmic stellar explosions called supernovae. CERN Scientist David...

Could human civilization eventually spread across the whole Milky Way galaxy? Could we move beyond our small, blue planet to establish colonies in the multitude of star systems out there? These questions are pretty daunting, but their...

The Earth intercepts a lot of solar power: 173,000 terawatts. That's 10,000 times more power than the planet's population uses. So is it possible that one day the world could be completely reliant on solar energy? Richard Komp examines...

At this moment, three hundred million women across the planet are experiencing the same thing: a period. The monthly menstrual cycle that gives rise to the period is a reality that most women on Earth will go through in their lives. But...

You and your team have crash-landed on an ancient planet. Can you appease the three alien overlords who rule it and get your team safely home? Created by logician Raymond Smullyan, and popularized by his colleague George Boolos, this...