Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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

Making your own glass cleaner is easy, effective and inexpensive!

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

This science fair project idea produces varying pitches of sound.

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

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.

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

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.

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

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

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

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

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

How powerful is the reaction between baking soda and vinegar? Find out here!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

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

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

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

This science fair project idea produces sounds by creating vibrations using different objects.

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.

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