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Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

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.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

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.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

This fascinating science fair project explores eye color genotypes.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

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

This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

This science fair project idea studies whether eating a hearty breakfast before and exam will get them better test scores.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Compare different remedies for cooling the mouth after eating spicy food.

Examine whether males or females are more likely to have a higher center of gravity.

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

Explore the effect of wind speed on the burning rate of a candle.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.