Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This science fair project idea determines what household items are good conductors of electricity.

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.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This science fair project idea experiments with spinning color wheels and optical illusions.

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 simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.