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

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

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 what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

Create homemade seed packets with your kids. This activity combines your kids' love of science and the outdoors with a little writing and drawing fun.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Thoroughly research image search engines. Consider possible improvements for visual search engines. Help design better image-matching engines.

What does yeast eat? Sugar, of course. But yeast also has some powerful enemies in the form of antifungal agents! Kids test them out in this fun yeast lab.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

This experiment uses personality assessments to evaluate the prevalence of specific character traits in left-handed and right-handed people

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Determine which metal has the highest rate of conductivity.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Start your toy engines -- this is going to be a fast and friction-filled race!

Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.

This science fair project compares the allelopathic chemical produced by the Black Walnut tree to a commercial herbicide in stopping the growth of a shrub.

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

This science fair project idea tests whether tall people have the ability to swim faster than people of average and shorter heights.

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.