Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

Determine which metal has the highest rate of conductivity.

Can cells be frozen? This science fair project provides information to answer this question.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

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 determines if the temperature of rubber effects how high it bounces.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

Determine which material produces the strongest static charge.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Could there be toxic chemicals lurking in the cupboards and closets of your home?

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

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

This experiment investigates if stress alters body temperature.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

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.

This experiment explores whether caffeine improves athletic performance.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.