Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

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

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

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

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

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Help your middle schooler improve his observation skills by playing this simple observation and spatial memorization game.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

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

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

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

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

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!

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

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

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

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.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.