Why is that shadow getting longer? Determine the changes in the length of a shadow as the sun changes position in the sky. Individuals use an interactive to calculate the length of a shadow at different times during the day via the...

Before iPhones and calendars, how did humans determine the seasons of the year? Middle school scientists discover how to use shadows to determine the time of year in an enlightening interactive. Pupils manipulate the sun and examine the...

Sunrise, sunset ... swiftly move the shadows! Pupils practice comparing shadow length data with a hands-on activity. The resource allows users to examine and measure the shadow cast by a stick as the sun moves overhead before testing...

Which creates more digital traces: surfing the Internet in a coffee shop, or using an iPhone to send a text message? The answer may surprise you! An interactive resource prompts users to choose which devices, operating systems, and...

Scholars use an online interactive to learn just how different the other side of the mountain actually appears. They use satellite images, graphics, and videos to compare the impact of winds, oceans, clouds, precipitation, and more on...

Why do so many mountain ranges exist next to a desert? As part of a larger series, PBS 6-8 Weather and Climate answers this question. The presentation offers diagrams and photographs of the development of a rain shadow. From Oregon to...

Scholars examine a document from 1928 featuring a mystery invention. Following their observations and discussion, the document reveals the invention of the permanent wave machine by Marjorie S. Joyner. Class members read about Joyner,...

Examine the United States through the lens of intolerance using this 2-week unit plan, which includes details for 13 days of instruction. Scholars study examples of prejudiced behavior throughout history, discuss issues in groups,...

Build numbers with place value to save the day. Pupils use the keyboard to control the digits in the hundredths through hundreds place to create target numbers to destroy shadows. As participants build the numbers, a number line shows...

Let there be light in your classroom with a video that explains that light travels in waves, the electromagnetic spectrum contains seven colors, and the color of an object depends on which light waves it reflects and absorbs. With...

How did the 2017 eclipse look in Los Angeles—or Chicago? Experience both views, plus many more, using a lesson from PBS's Space series for middle schoolers. Scholars follow the movements of the sun, moon, and Earth during the most recent...

In this distance worksheet, students calculate the lengths of sides and diagonals of figures.  Students also compute lengths in shadow problems.  The solutions are provided by clicking on the "show answers" tab at the bottom of...

Illusions are what your mind makes them. Learners view several optical illusions. After each illusion the resource describes what is seen and the potential connection to evolution of the brain. Illusions include seeing different objects...

To practice using present simple verb forms, your young grammarians  complete 24 sentences using has and have with an online interactive activity. They use a drop down menu in each sentence to choose their answer before they submit...

In this earthquake exploration worksheet, students complete 2 prior knowledge questions, then use "2D Eclipse Gizmo" to conduct several activities, completing short answer questions when finished.

For this earthquake exploration worksheet, students complete 3 prior knowledge questions, then use "Eclipse Gizmo" to conduct several activities, completing short answer questions when finished.

In this interactive Halloween English exercise worksheet, students listen to a clip of a Halloween story and complete the sentences from the story by selecting the correct word from the drop-down menu. There are 20 sentence fill-in's to...

In this "Curious?  Will you be eclipsed?" worksheet, 4th graders answer 4 questions interactively about eclipses, then check answers online.

In this online interactive ESL worksheet, students respond to 10 fill in the blank questions regarding idioms with numbers. Students may submit their answers to be scored.

In this online interactive grammar skills worksheet, students examine 10 sentences that are missing words and select the appropriate words to complete each of the sentences and match them to the sentences. Student answers are...

In this friends activity, students choose the correct word to complete the sentences about friends. Students complete 7 multiple choice questions.

In this online interactive English worksheet, students respond to 20 fill in the blank questions that require them to use confusing words appropriately. Students may submit their answers to be scored.

In this word groups worksheet, students decide which category the group of words they are given fit in to. Students complete 10 problems total.

In this writing worksheet, students view two and three Dimensional images of "Homer Simpson" and write a paper comparing and contrasting the two images. They are guided  by three questions as well as supplied with four links to...