This Fourth of July, play a fun history-inspired math and logic puzzle game for your kids to play!

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

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.

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

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!

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.

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

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

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

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

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.

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

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.

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.

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