This science fair project idea compares the cuteness reaction between genders.

This science fair project idea studies the differences in gender perception between people.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

This science fair project idea discovers the principle of conservation of mass.

Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

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

Your mission, if you choose to accept it, is to construct a parachute that will deliver an egg safely to the ground. Good luck!

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This science fair project idea determines whether the older population prefers darker, duller colors rather than bright and lush colors.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Demonstrate which cooking method gets rid of the most fat.

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

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Test whether plants can grow without sunlight and water.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Compare the ignition rates of various types of flame-retardant materials.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

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

Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

In this science fair project, students evaluate if astrological signs provide clues about people's personalities.

In this science fair project, students evaluate if the phases of the moon affect the way people feel.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

This project examines whether and what associations exist between numbers and letters and colors.

This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.