Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

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

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.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

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

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.

This science project has students study the idea of human beauty.

Science fair project that illustrates the properties of black holes in space.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

Science fair project which examines the chemical reaction of a candle flame with various gases in order to determine the identity of the gas.

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

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.