This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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.

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

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

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

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

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.

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.

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?

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.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

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

This science fair project idea investigates if fats add to the flavor of food.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

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

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

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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

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