Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

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

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

Teach your child how butter is created by shaking up cream the old-fashioned way.

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!

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.