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

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

This project investigates an interesting question: If one learns to write backwards, is one also able to read backwards?

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!

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

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.

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.

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.

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.

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.

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

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

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

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

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

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.

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

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.

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

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.

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