Look at people's face shape. Do you think their face shape affects your perception of kindness? Find out more in this science fair project idea!

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 investigate whether reward or punishment is more apt to motivate people.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

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

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Examine whether males or females are more likely to have a higher center of gravity.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

This project compares the strength of one, two, and three-ply toilet paper.

This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.

This experiment evaluates whether a personâs dominant hand is more sensitive than their non-dominant hand.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

This project examines whether more expensive golf balls translate into better results on the golf course.

Do suds equal more clean or does a sud-free cleaning agent works just as well or even better?

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

This experiment observes inattentional blindness and investigates whether certain age groups or genders are more likely to demonstrate this phenomenon.

This science fair project idea explores discover whether there are any patterns or trends in the memories between different genders.

This experiment uses personality assessments to evaluate if certain personality traits are more common in people with unusual first names.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.

This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.