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.

Check out this fun science project to explore the relationship between solubility, drug absorption, and time required for a drug effect to become apparent.

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

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

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

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.

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

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

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

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.

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.”

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.

This science fair project idea examines liquids of different densities.

Would you be able to tell the difference between colored contacts and natural eyes from a normal distance? Find out in this science fair project!

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

This science fair project idea investigates whether plants can survive being frozen.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project idea studies whether a religious sleeping schedule relates to a higher IQ.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea demonstrates how our fingers prune when in water.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

This science project establishes a "breakability index" - basically to assess how much damage is done in different circumstances.

This science fair project determines the quality of a given product.

This project examines whether more expensive golf balls translate into better results on the golf course.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.