Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

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

This science fair project idea investigates the relationship between memory and age.

Check out this fun science project idea to get a better understanding of unstable isotopes and the process of radioactive decay of isotopes through modeling.

This experiment investigates if stress alters body temperature.

This science fair project idea compares the cuteness reaction between genders.

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

This experiment investigates whether the primacy effect is observed more frequently in specific populations of people.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

In this experiment, you will evaluate whether or not a diet that is supplemented with "brain-enhancing" foods can help improve memory.

Science fair project idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

This experiment investigates whether paper color influences people's ability to remember the information that they read.

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.

This experiment investigates whether font choice affects peoplesâ ability to remember the information that they read.

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.

The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.

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

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

This science fair project idea investigates food preference of birds.

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

Discover whether people can distinguish what a person looks like just by listening to their voice.

This experiment will evaluate how texting and talking on cell phones influence reaction time.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

This experiment will evaluate if chewing gum affects students' test performance.

Does fear cause the same physiologic responses in men and women? This experiment measures people's blood pressure and heart rate while watching a scary movie.

Investigate which substances are most effective at removing salt from water.