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?

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

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

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

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?

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.

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

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

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

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.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

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 project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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

This science fair project idea demonstrates that plants give off water.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

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.

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

This science experiment has students test whether a snail moves faster on concrete or dirt.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.