This science fair project idea experiments with spinning color wheels and optical illusions.

Give your budding young observers a chance to discover simple machines at use in their own home.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this fun activity, your child will create their very own solar oven to bake s'mores!