The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

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.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

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.

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

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

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Science fair project that determines whether mass and weight are the same or different.

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.

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

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

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.

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

This project will examine the relationship between wind velocity and direction and the distance a baseball travels.

Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.

This science fair project idea identifies and understands adaptations in birds.

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 that determines how we can change potential energy into kinetic energy.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

Demonstrate how to tell the age of an egg without having to crack it open.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

Science fair project that explains and demonstrates the parallax principle.

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