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

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

Discover whether a metal will expand under hot water.

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

Find out whether a longer airplane will fly farther or a wider paper airplane.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project idea investigates the hardness property of minerals.

This science fair project idea examines which type of insulation holds in the most heat.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project will help students learn about non-vascular plants, such as mosses.

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

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

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

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This project investigates the affect of storage temperature on microwave popcorn.

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?

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

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

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

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

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

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

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