What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

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

Did you know that light could bounce? Set up a light obstacle course with a few mirrors and watch light bounce around your room.

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