The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

This science fair project idea explores whether a person's ability to see under very dim lighting conditions diminishes with age.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

The goal of this science fair project is to determine which cheese grows mold the fastest: Vermont Cheddar, American, Brie, or Camembert?

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

Can you wink? Is your ability to wink genetic or simply based on chance? Find out in this science fair project idea!

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.