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This science fair project idea investigates the difference in reaction times between boys and girls.

This project examines the concentration of dissolved oxygen in water, with and without oil.

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.

Science fair project that determines what neurons are, what they do and compiles this vital information in an illustrated book.

This science fair project teaches students about wilting and browning of salad greens.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

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

Science fair project which examines the chemical reaction of a candle flame with various gases in order to determine the identity of the gas.

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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

This science fair project idea determines which flower lasts the longest.

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

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

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

The project researches how lubricants affect the mechanical advantage of a pulley.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

Create an organic plastic product using vinegar and cream. Track decomposition over course of several weeks. Compare decomposition with traditional plastics.

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

Test whether spot magnets can help improve the symptoms of an injury.

The purpose of this science fair project is to build a basic radio.