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.

Evaluate gender differences in processing visual information.

This science fair project idea studies whether eating a hearty breakfast before and exam will get them better test scores.

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

Learn about our cognitive capacity of attention and to learn about factors that influence attention.

This science fair project idea tests the efficiency of short term memory.

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

This science project examines the thermal properties of several major greenhouse gases.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

The project idea is to establish whether it is easier to memorize words with fewer syllables and to understand how memory works.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea determines whether the older population prefers darker, duller colors rather than bright and lush colors.

This science fair project idea investigates how different disinfectants work in killing germs.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Find out whether matte or shiny nail polish lasts longer.

Explore the neural and mental mechanisms at play in mental imagery.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

This project examines the amount of saltwater required to affect the growth of plants and subsequent effects on growth and development.

This experiment will explore the best way to create a perfect soft-boiled egg.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

Determine whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.