Introduce your flashlight to mirrors. Mirrors are cool surfaces that reflect light just as well as they reflect your face.

Introduce children to physicist Albert Einstein — and a bit of theoretical physics — with this mini biography.

Next time you head outside for a hike or a camping trip, bring along this checklist of animal tracks!

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

Did you know that each tree tells a story? In this worksheet, children peer inside a tree to learn about the layers in its trunk.