Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

This science fair project idea discovers the average number on the Scoville scale that humans can endure in hot peppers before physical signs kick in.

Evaluate gender differences in processing visual information.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

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

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

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.

Discover how and which salt melts ice the quickest.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

This science fair project idea determines how quickly germs and bacteria spread.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Test out various brands of permanent markers to see which one is least water soluble.

Discover whether ants are more attracted to natural cane sugar or artificial sweeteners.

This experiment investigates whether smell can be used to enhance test subjects' memories.

Explore whether pianists have the tendency to type faster than non-pianists.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

This science fair project idea determines if a particular chemical has an effect (increase or decrease) on the heart rate of Daphnia.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Does 100% Fruit Juice have more Vitamin C than juice with artificial ingredients? Find out in this science fair project idea!

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

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

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

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 science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Students will investigate the illumination durations and intensities of different luminous substances of different colors of the spectrum.