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

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

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

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.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

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

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

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

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

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.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

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

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

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