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

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

This fascinating science fair project explores eye color genotypes.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

2011 VIRTUAL SCIENCE FAIR ENTRY: The objective of this science fair project is to develop a microcontroller and circuit that can conduct electricity.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

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

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!

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.