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

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

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.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

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

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

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

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

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.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

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.

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.

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.

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.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

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

This project investigates whether chewing gum can help a majority of people with focus and concentration.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

This project explores if people more easily distinguish between faces of people of their own race or ethnicity compared to those of other races or ethnicities.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

This science fair project idea explores the egg's thin membrane.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.