In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

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.

The project investigates how water and movement affects erosion.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

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

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.

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

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

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

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

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

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

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.

Word color association is just a fancy way to talk about the way we connect colors with words.

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

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

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.

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

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

This science fair project idea investigates whether air has mass and weight.