The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

Think about the adaptive utility of an important aspect of our physiology.

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

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 use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Explore the effect of wind speed on the burning rate of a candle.

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

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

This science fair project idea focuses on the production of oxygen by plants during the photosynthesis process.

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

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

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

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

A math project teaches students to use a clinometer to gauge the height of very tall objects like trees & to think of better ways to measure how high they are.

Science fair project that explains and demonstrates the parallax principle.

In this cool science project, model how impact craters form on the surface of the moon.

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 which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.