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

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

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

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.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This project determines what category of person is most likely to be ticklish.

This science fair project idea determines which method of hand cleansing is the most effective.

Using a toy race car kids create a visual model of the Doppler Effect.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

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

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.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

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

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

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?

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

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

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.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

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

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