This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

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

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

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

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

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

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

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

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.

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

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

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.

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

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

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.

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.

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

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

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

Free science fair project idea examining how different types of water affect plant germination and growth.

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.

This project concerns activity happening millions of miles away, on the sun.

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

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

This experiment will explore the best way to create a perfect soft-boiled egg.