Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

Check out this hot project idea to culture bacteria and determine if the claims about the anti-bacterial properties of curry and cinnamon are true.

.Have you ever had problems with your wifi signal strength? In this experiment you will learn about how wireless signals pass through the air and solid objects.

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

Science fair project that examines how cell membranes allow the inward and outward flow of materials as demonstrated by eggs.

In this project, you'll create Oersted's experiment, which relates to how electric currents create magnetic fields.

This science project has students study the idea of human beauty.

Detail the chemical properties, nutritional value, medicinal effects of garlic, Write a detailed report, prepare recipes.

This science fair project idea investigates how the shape of an object affects drag.

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

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

This experiment evaluates if the temperature of the environment that you work in affects your ability to perform mental tasks.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

The purpose of this science fair project is to build a basic radio.

This study observes plants, insects and an animal living in proximity to a known source of EMF.

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

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.