Why does your shadow move throughout the day? Watch this PEEP video [1:27] to understand how the sun's movement causes our shadow to change direction, shape, and size. Also included are teaching tips and how to conduct your own chalk...

Ancient Chacoans used shadows to tell daily time and seasons. Build a model that demonstrates the changes in Earth's tilt that affect the length of shadows relative to the sun that determines the seasons. The lesson plan uses everyday...

Watch PEEP and Quack [8:49] have fun with shadows in the middle of the night using flashlights. They learn that shadows can grow and change shape by rotating the object. An additional hands-on activity is provided for students along with...

Make a sundial and learn how to use it.

Plenty of cool activities about the Earth's rotation can be found here, such as tracing shadows, observing shadows during different times of the day, and tracking the sun's path in the sky to understand the rotation of the earth.

In this activity students will investigate the accuracy of sundials and the discrepancy that lies between "real time" and "clock time". They will track the position of the sun over the course of a relatively short period of time as they...