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.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

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

This project examines whether humans can intuitively grasp numeric values greater than three.

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.

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

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

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

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

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

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.

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

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

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

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

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

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

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

This science fair project idea deals with the qualities of shade on a sunny day.

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

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

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

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