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This science fair project idea creates an underwater habitat and explores the basic needs of living things under water.

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

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?

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

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.

This experiment explores whether caffeine improves athletic performance.

This experiment tests which gender is better at catching how a magician performs his tricks.

This project uses toy cars to determine how friction and gravity affect cars and braking.

We're all familiar with the idea that some songs âget stuck in your head.â This experiment explores the validity of that claim.

Study the effect of music on blood pressure. Compare blood pressure readings before and after the listening session. Analyze results, write a detailed report.

This experiment will explore if magnetism has any effect on the regeneration abilities of flatworms.

Describe the lives of commercially raised chickens. Contact local chicken farmers for information and advice. Write a detailed report about farming techniques.

This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Analytical chemists perform chromatography to separate colors into pigments. Test the food coloring used in M&M's and Skittles candy in this fun project!

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

This science fair project idea tests whether tall people have the ability to swim faster than people of average and shorter heights.

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

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

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

Find out which part of a flame burns wood the fastest and also if this is true for all types of flames such as candle-flame, burners, and lighters.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.