Leave your computer on 24/7. Will this lead to to more frequent crashes, freezes, and a slower processing speed? Find out in this science fair project idea.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

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

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

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

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 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.

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

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

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.

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

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

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

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

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

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.

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

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

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

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

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

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

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