This science fair project idea is develops new or improved paper making techniques and encourages recycling.

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Find out whether putting something on top of a plant will inhibit its growth.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

In this science project, the center of gravity is explored.

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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This science fair project idea compares biodiversity between drops of water.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This biodiversity project examines the biodiversity in your own backyard.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

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

The project investigates how friction affects motion by using different surface textures.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.