Start your toy engines -- this is going to be a fast and friction-filled race!

Using a toy race car kids create a visual model of the Doppler Effect.

This project explores if people more easily distinguish between faces of people of their own race or ethnicity compared to those of other races or ethnicities.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

This science experiment has students test whether a snail moves faster on concrete or dirt.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Do you think heat can affect a plant's growth rate?

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This project uses toy cars to determine how friction and gravity affect cars and braking.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

A cool physics science fair project idea for 7th grade exploring the application of distance, velocity, and time equations.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

Learn how to convert gravitational potential energy into mechanical energy in this fun science fair project idea.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

In this science fair project, we will test how different kinds and shades of hair respond to bleach.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

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.

Will people perceive your intelligence differently depending on your hair color? Find out in this science fair project idea!

Your mission, if you choose to accept it, is to construct a parachute that will deliver an egg safely to the ground. Good luck!

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This experiment investigates whether there are certain sounds that affect men and women differently

These science fair experiments demonstrate the chemistry of rust and the oxidation process.