This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

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

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.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

In this fun experiment, we'll find out how color affects heat absorption!

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

This project examines what types of objects burn and which burn faster and cleaner.

This science fair project idea investigates how magnetism can defy the force of gravity.