What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

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

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

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

This science fair project idea investigates how different disinfectants work in killing germs.

This science fair project idea explores the egg's thin membrane.

This experiment investigates whether font choice affects peoplesâ ability to remember the information that they read.

This experiment investigates whether the primacy effect is observed more frequently in specific populations of people.

Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

This project examines whether humans can intuitively grasp numeric values greater than three.

Monitor the impact learning how to play chess has an academic performance. Divide subjects into two groups compare GPA

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

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

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.

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.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.