Check out this cool science fair project on identifying rocks and minerals for kids.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

This science fair project teaches students the differences between fruits and vegetables.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

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

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Cleaning can be a chore, but not with this sudsy experiment!

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

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

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

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science fair project idea explores the egg's thin membrane.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

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

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

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

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

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.