The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

This science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.

This science fair project idea explores the fastest average speed a human can talk.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Science fair project that uses distillation to convert salt water into fresh water.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

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

Use pepper and soap to discover some fun facts about the properties of water.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.