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This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

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

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

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.