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

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

This science fair project idea investigates if webbed feet help a duck (and others) swim.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

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

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?

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

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

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this experiment you will replicate the mummification process by making a hot dog mummy.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

Is it a square or a circle? See if you can trick your friends with this zany science project!

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This project makes young children uniquely aware of their sense of touch and its ability to alone give them information about the world around them.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

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

The objective of this science project is to determine the length of time for different seeds to germinate.

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.

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

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.