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

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

The objective of this experiment is to conduct a ganzfeld experiment and determine if extrasensory perception (ESP) can be observed.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This cool physics demo illustrates the simple harmonic motion of a pendulum while teaching kids the important concepts of potential and kinetic energy.

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

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

Determine whether the relationship between a personâs armspan and height are genetic.

Science fair project that evaluates how well clothing fabrics block UV radiation by examining the properties of different fabrics.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

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

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

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

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

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

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

Study the effect of music on random rote memory. Examine the practical application of music in learning and education.

Discover if soda geysers will erupt when using regular vs. diet cola and which candies will create eruptions.

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

This project compares the strength of one, two, and three-ply toilet paper.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.