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This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

Study how we perceive color by exploring optical illusions such as pointillism, digital images, and Ishihara tests.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

Science far project which determines whether the material of a baseball bat affects the distance that the baseball will travel.

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

The goal of this project is to create an exciting topographical map out of dough.

This science fair project examines the different composition of fungi and plants.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

This science fair project idea provides evidence that air is everywhere and takes up space.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

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

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Study the anatomy of the brain and the functions of the corpus callosum. Research split brain surgery and its impact on advances in neuroscience.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Determine if each hemisphere specializes in dealing with specific functions. Include illustrations of the brain, it hemispheres.

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.