This science fair project idea lets you build your own wind tunnel and tests different models of paper airplane.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

This science fair project idea discovers the practical applications for the structural design of a snail shell.

In this science fair project, students examine how temperature affects sugar transport within a plant.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

This science fair project idea looks into the concept of powered parachutes as the future of transportation.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

The project researches how lubricants affect the mechanical advantage of a pulley.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Science far project which determines whether the material of a baseball bat affects the distance that the baseball will travel.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

Your mission, if you choose to accept it, is to construct a parachute that will deliver an egg safely to the ground. Good luck!

Make edible amber fossils with your second grader to explore the fascinating world of science!

This science fair project idea determines the probability of a coin landing heads or tails.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

Discover whether cheap saline solution bottle cleans and disinfects just as well as more expensive kinds formulated with different ingredients.

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

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project outlines the uses of gold and explores the monetary value of gold.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.