This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

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

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Find out whether packaged seeds actually do expire in this new science fair project idea.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

This science fair project idea examines whether boys and girls differ in reflexes.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

Help your child learn about animal classification with this fun and delicious activity.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

This science fair project idea determines the probability of a coin landing heads or tails.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

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