In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

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!

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

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

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

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

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

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.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

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!

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

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

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

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

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

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

Teach your child about using pumps to move water in this simple and educational preschool science activity!