This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

This science fair project idea compares the cuteness reaction between genders.

This project examines which type of dance burns the most calories.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Choose a timeline to live without technology. Keep a journal of all the issues encountered. What are the benefits and cons of modern technology?

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

In this project, a mnemonic is used to test how it increases memory.

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.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

The objective of this free science fair project is to examine the way in which the phases of the moon affect circadian patterns in mammals.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Science fair project which determines whether your current calorie intake will cause you to lose or gain weight over time.

This science fair project idea quantifies the effect of specific food sources on red worm (Eisenia foetida) livelihood.

This project investigates whether chewing gum can help a majority of people with focus and concentration.

This project examines what types of objects burn and which burn faster and cleaner.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

This science fair project idea determines what factors influence an individual's reaction time using a web-based timed reaction test.

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

The project investigates how friction affects motion by using different surface textures.

This science fair project idea studies the differences in gender perception between people.

This social science experiment assesses whether the timing of peak mental performance shifts from afternoon to morning as we age.

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

This science fair project determines which type of physical activity most improves memory.

Determine whether cats have dominant paws. Observe which paw cat uses to reach for treats, feather, and string. Calculate percentage for two paws.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

Create groups of volunteers based on frequency of playing video games. Compare driving records. Analyze data, interpret findings.