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

Word color association is just a fancy way to talk about the way we connect colors with words.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA

In this project, you will observe and record changes in sunspots over two weeks.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This experiment evaluates how a diet that is rich in "mood-enhancing" foods affects the way people feel over several weeks.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Determine how wind speed affects the stability of a kite and the ease of getting it into the air.

Create an organic plastic product using vinegar and cream. Track decomposition over course of several weeks. Compare decomposition with traditional plastics.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

This experiment explores how listening in to a one-sided conversation affects concentration.

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

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

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.