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

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

Would you be able to tell the difference between colored contacts and natural eyes from a normal distance? Find out in this science fair project!

This project examines which type of dance burns the most calories.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

In this science fair project, students use the streak test to tell minerals apart from each other.

Construct batteries that make electricity from fruits with this fun science fair project.

This science fair project idea determines how your body responds to allergies.

This research project teaches students about synesthesia, a neurological condition that causes sensory overlap.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

This experiment examines if space objects become round after reaching a certain mass.

This project determines how much the rebound rates of tennis balls change after ten games.

This science fair project idea examines the differences between bottle water, filtered water, and tap water.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This science fair project idea investigates food preference of birds.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Science fair project that evaluates how well clothing fabrics block UV radiation by examining the properties of different fabrics.

In this science fair project, students investigate how different colors influence appetite.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Examine the effect of pressure on carbonation in soda.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!