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

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

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

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.

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

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.

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.

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

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.

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.

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

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

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

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

It's the day before the test, and you still have a ton to memorize! Sound familiar? Test memorizing techniques to help yourself out next time.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

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

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