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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 fun experiment provides a concrete and visually striking illustration of photosynthesis.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Find out which type of sponge holds the most water.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

This science fair project idea investigates how color affects temperature.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

In this design challenge, your child will make a bottle rocket using typical household items.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project investigates why the number of visible stars changes from place to place.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

What happens when colored beams of light mix? You might be surprised.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This science fair project teaches students about wilting and browning of salad greens.

This science project allows students to study the psychology of happiness.

How do organic materials become soil? This science experiment measures what materials biodegrade.