Do people only "hear" what they want to hear? Explore pareidolia and psychoacoustics with this easy science fair project that pits melody against white noise.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Learn more about consumer preferences, product availability and pricing. Search ebay listings typing keywords of your choice. Interpret statistical analysis

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

Demonstrate how tracks are formed by pressing your hand into a cornmeal mixture, then reverse the process and make prints of the track.

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

The aim of this science fair project is to study the mathematical construct called magic squares and create a unique magic square puzzle.

This science fair project idea explores whether dry ice will cool a beverage faster than wet ice.

This science fair project idea determines how your body responds to allergies.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

This science fair project idea determines which method of hand cleansing is the most effective.

Describe the lives of commercially raised chickens. Contact local chicken farmers for information and advice. Write a detailed report about farming techniques.

Help your child plant a "tea garden": a garden made of herbs for making teas.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

This science fair project idea determines which brand of batteries have the longest life.

Help your young scientist celebrate the wonders of the night sky in the comfort of your own home.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

Learn about the anatomy of the autonomic nervous system and its relationship to the rest of the body.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.

This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

This science fair project idea explores edible things you didn't know you could eat.

Discover the interactions of synthetic dyes and natural dyes on natural and artificially-made fabrics.