In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

This science fair project examines how seeds hitchhike on animals and clothing.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

In this activity, you'll send your kindergartener on a scavenger hunt to find sounds and create a sound recording. Here's how!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Use pepper and soap to discover some fun facts about the properties of water.

This activity allows your kindergartener to translate what they observe into a beautiful poem.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

In this project, a basketball containing different psi is dropped to see how well it bounces.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Start your toy engines -- this is going to be a fast and friction-filled race!

Is it a square or a circle? See if you can trick your friends with this zany science project!

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!