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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.

This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

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.

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

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.

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

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?

Reuse and recycle cardboard tubes to make spooky spiders, kooky caterpillars, wacky worms, and more.