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

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This surprisingly good glue recipe comes from common kitchen items.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

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.

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

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

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

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

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

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.

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

This science fair project idea explores whether talking to a plant will help it grow.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!