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...

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...

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...

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

Play with PEEP to explore how shadows change when the position of light changes. Detailed teaching tips are included as well as additional shadow activities for the students.

The focus of this series of lessons is to engage students in an exploration of the world around them. The emphasis is on inquiry as students learn about the earth, sun, light, shapes and more.

A gnomon is the part of a sundial that casts the shadow. This simulated experiment illustrates the gnomon over the course of a day.