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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.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

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

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

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

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

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

People have favorite flavors, but what about ants? Which ant food is the most popular?

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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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

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

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

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

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

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

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

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.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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

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 activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

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

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

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