Science fair project that tests whether cats have a preference for organic food.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

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

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

Science fair project that compares tap water and bottled water for the presence of common impurities.

This science fair project idea produces varying pitches of sound.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Help your child add some flair to the family garden with pencil pinwheels!

Science fair project that determines the effect of concentrated mental effort on physical performance levels.

Science fair project that examines search engine optimization, internet search trends using a statistical study of searched keywords.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

This science fair project evaluates which sense produces the fastest response time: hearing, touching, smelling or seeing.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.