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

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

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.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

This crafty activity provides a hands-on way for your child to illustrate how the trees look during each season of the year.

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

Construct and experiment with a periscope using reflected light rays to gather an image.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Illustrate the idea of light refraction with this exciting and mystifying experiment.

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 experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Check out this fun high school science fair project idea to investigate how the cell membrane regulates what moves into and out of cells.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

This experiment strives to determine if tracking of conservation habits will lead to reductions in a family's electricity and water bills.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

For this activity your child will use the ready made glycerin base to create elegant rose petal hand soaps.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.