How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

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

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Do different types of oil mix or stack? Find out in this science fair project idea!

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

This classic children's game demonstrates how sound travels through air vs. through a solid.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This science fair project teaches students about wilting and browning of salad greens.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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.

Plants and light seem to be good buddies, but how far does the friendship really go?

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea investigates how the shape of an object affects drag.

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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.

The project investigates how water and movement affects erosion.

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

This science fair project idea explores how length affects the weight a bridge can hold.

This science fair project idea investigates how magnetism can defy the force of gravity.