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

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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.

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

Chemistry isn't just incredible ... sometimes its edible! These crystal lollipops are a delicious introduction to chemistry concepts.

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

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

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

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

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

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

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

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Teach your child how butter is created by shaking up cream the old-fashioned way.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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