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

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

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

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

What happens when colored beams of light mix? You might be surprised.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

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!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.