This science fair project idea explores how length affects the weight a bridge can hold.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.