Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

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

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Learn whether writing things down really makes things easier to remember.

This science fair project idea discovers which parts of the body are more sensitive to touch than other parts of the body.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

In this project students experiment with making music using only glasses of water.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This experiment tests which gender is better at catching how a magician performs his tricks.

This science fair project idea determines if family members can recognize one another using only the sense of smell.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

This science fair project idea examines whether boys and girls differ in reflexes.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

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

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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

This science fair project idea investigates the difference in reaction times between boys and girls.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.