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Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

Science fair project that compares the properties of different fabrics to determine whether natural or synthetic fabrics are better at wicking away moisture.

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.

Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

The goal of this science fair project is to demonstrate current methods of detecting counterfeit money, in particular counterfeit detection pens.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea determines the most effective method of preserving food.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

Study the effect of music on random rote memory. Examine the practical application of music in learning and education.

This project examines whether sugar substitutes are as sweet as real sugar.

This project will examine the relationship between materials and air resistance.

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

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

Science fair project that determines whether brain size is correlated with intelligence.