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

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.

Find out all about the different parts of the eyes and how they work together to make vision possible.

Learn all about light refraction by simply placing your pencil in a glass of water. Warning: your pencil may not be quiet the same afterward.

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

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