Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

This science project allows students to study the psychology of happiness.

Can you wink? Is your ability to wink genetic or simply based on chance? Find out in this science fair project idea!

Would you be able to tell the difference between colored contacts and natural eyes from a normal distance? Find out in this science fair project!

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

This science fair project idea designs safe bicycle routes using GPS.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Observe which kind of fresh long-stemmed flower will last the longest after being picked.

This high school science fair project investigates if small changes in your diet alter the pH of your saliva.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.

This science fair project idea discovers the average time it takes for a person to remember something completely.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

Learn about nature by making your own mini moss garden.

This experiment will explore if a randomly iterated algorithm will result in a pattern.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

In this science fair project, students test how objects float and sink in liquids of different densities.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Detail the chemical properties, nutritional value, medicinal effects of garlic, Write a detailed report, prepare recipes.

Demonstrate and explain holographic technology. Determine if a holographic image of a magnifier still magnifies the object beneath it. Explain the effect.

Time to look at our faces! Are they symmetrical or asymmetrical? Find out in this science fair project idea.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

This science project challenges high school students to study the linguistic evolution of text messaging.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea examines the differences between bottle water, filtered water, and tap water.

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

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.