Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

Science fair project that tests whether cats have a preference for organic food.

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

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

This science fair project idea explores the different properties & interactions of sugar molecules.

This experiment investigates the relationship between the temperature of a candle and its burn rate.

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

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

This science fair project idea provides evidence that air is everywhere and takes up space.

This project investigates the affect of storage temperature on microwave popcorn.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Explore whether pianists have the tendency to type faster than non-pianists.

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

This project examines what types of objects burn and which burn faster and cleaner.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Science fair project that determines which types of clouds are best at blocking harmful UV radiation.

This science project investigates the influence of different genres of movies on appetite.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Evaluate if people are more influenced by video or audio advertising.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.