This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

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

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

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

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

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

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

In this project students experiment with making music using only glasses of water.

Research information on vitamin content in foods, Examine the effect of vitamins, test organic samples of fruits, meats, grains for vitamin content.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This science project teaches students to classify different shapes of leaves.