How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

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

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

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!

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

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

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

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

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

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

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

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

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.

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

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

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

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

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.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?