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

This science project allows students to study the psychology of happiness.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Plants and light seem to be good buddies, but how far does the friendship really go?

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

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

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

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

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

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

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.