Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

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

Test the idea that people who wear glasses tend to be more educated. True or false?

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

A cool physics science fair project idea for 7th grade exploring the application of distance, velocity, and time equations.

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

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

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

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

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

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Find out whether packaged seeds actually do expire in this new science fair project idea.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

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

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.