This science fair project idea investigates the difference in reaction times between boys and girls.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This experiment investigates whether smell can be used to enhance test subjects' memories.

This middle school science fair project evaluates test subjectsâ ability to determine what a person is feeling by reading their facial microexpressions.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

It has long been believed that weather influences mood and behavior. This experiment will evaluate if weather can really impact the way people feel.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

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.

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

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

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

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.