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

Children learn the fascinating physics behind lightning, along with a few fun facts, in this physical science worksheet.

A lot of common objects use electromagnets to work. This word search will get your child thinking about all the electrical and mechanical devices around her!

In this worksheet, kids learn about friction by answering questions about the amount of friction in different situations.

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.

Review the terminology of collisions with this engaging crossword puzzle for fourth graders!

Apply concepts of energy and motion to marbles in this fourth-grade worksheet!

Introduce your budding scientist to chemical reactions with this simple and fun science experiment!