Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Learn with makes water molecules work with this fun and easy science activity!

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

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.

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.

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

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

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

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

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

Try this chemistry experiment with your curious kid and get some "shocking" results!

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

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

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

What happens when colored beams of light mix? You might be surprised.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

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

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

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.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.