This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

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

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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

This project examines whether playing music during class helps students learn or if it distracts students from learning.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

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

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Help your kindergarten science maven explore the water cycle without getting everything wet.