Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

Evaluate whether birth order influences personality.

Puppets can help preschoolers practice communication and conflict resolution.

Determine if gender affects the ability to identify different smells.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

This science fair project idea studies past and current fads and trends.

Evaluate the efficacy of different pain management techniques.

Test the placebo effect in different groups of people.

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

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

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

This science fair project idea investigates the relationship between memory and age.

This activity with add some fun and education to long car trips. Perfect for family vacations!

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

Learn how to count in Spanish. Your child will practice her numbers and build her reading skills while learning a bit about Latino culture along the way.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

This science fair project idea explores whether color affects a person's emotional state.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

It's the day before the test, and you still have a ton to memorize! Sound familiar? Test memorizing techniques to help yourself out next time.

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

Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

Get your child excited for the seemingly stuffier side of these chilly months with a mock debate.

Explore the belief in astrology as a predictive system.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Learn about the factors that influence group conformity.