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Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Determine how effective animal camouflage is by simulating it in an indoor and outdoor setting.

How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

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

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

Find out whether matching resonant frequencies can cause objects to shatter.

Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

Science fair project that examines the physical features of elephants and butterflies and draws conclusions about their similarities.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Study history of aerodynamics of arrow design to create a perfect arrow. Test arrows by shooting at an archery target.

This science fair project examines discover whether different formations of deodorant works better for certain skin types.

Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

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

Science fair project that explores the variety of webs that spiders weave and collect specimens for identification.

This science fair project idea explores whether the types and brands of faucet filters are relevant to their performance.

This research project teaches students about synesthesia, a neurological condition that causes sensory overlap.

Explore the negative and positive consequences of stereotypes.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.