Start your toy engines -- this is going to be a fast and friction-filled race!

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This science fair project idea determines which flower lasts the longest.

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

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

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

In this science fair project, high school students will try to determine the mathematical patterns in JS Bach's two movement preludes and fugues.

This fascinating science fair project explores eye color genotypes.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

This cool electricity project teaches kids how connecting batteries in series vs. parallel circuits can contribute to different levels of voltage and amperage.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This experiment will explore the possibility of creating an infinite object by hand.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

This science fair project idea determines which method of hand cleansing is the most effective.

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 test how objects float and sink in liquids of different densities.

This science fair project demonstrates the "power of conformity".

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

The goal of this project is to create an exciting topographical map out of dough.

In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.

Explore the relationship between personality traits and birth order effects.

This experiment will use computers to examine how the famous Mandelbrot set can be manipulated in fractals.