The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

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

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

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

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

Science fair project that examines the biodiversity of ant populations in various locations.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

This science fair project idea investigates how images are influenced by changes in light.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This project examines whether sugar substitutes are as sweet as real sugar.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.

This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

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