This science fair project researches the most effective method to cut an onion and stay tear-free.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

Test the idea that people who wear glasses tend to be more educated. True or false?

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

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

In this science fair project, students investigate how different colors influence appetite.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

This science project investigates the influence of different genres of movies on appetite.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

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

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

This science fair project idea tests the efficiency of short term memory.

This project explores what happens to a rubber band when it is heated and cooled.

This experiment investigates if stress alters body temperature.

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

Determine whether the application of Febreeze will lower the bacterial count.

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

This science fair project idea compares biodiversity between drops of water.

This science fair project idea investigates if fats add to the flavor of food.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

This science fair project idea explores the different properties of matter.

This science fair project idea determines the most effective method of preserving food.

This science fair project idea produces varying pitches of sound.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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