Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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

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

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

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

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

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

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

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!

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.

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

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.

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.

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?

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.