The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

This project compares different liquids and the freezing, melting and boiling points of liquids.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

This science project allows students to study the psychology of happiness.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

Discover which fabrics shrink the most in the wash and why.

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

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

It's the day before the test, and you still have a ton to memorize! Sound familiar? Test memorizing techniques to help yourself out next time.

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

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

The purpose of this science fair experiment is to investigate whether the color of your hair affects how much static electricity is carried.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

Use a dichotomous key to identify plants or animals.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

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 discovers whether there are some objects that do not fall at a constant rate.