This science fair project idea explores the fastest average speed a human can talk.

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

Think about the adaptive utility of an important aspect of our physiology.

Test out various brands of permanent markers to see which one is least water soluble.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

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

Determine which video game elevates the heart rate best and burns the most calories.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

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

This project concerns activity happening millions of miles away, on the sun.

This project examines whether humans can intuitively grasp numeric values greater than three.

A fun, life science sxperiment idea idea involving strategies for keeping birds away from crops using a distress call. What kind of distress call works best?

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

This science fair project idea explores whether talking to a plant will help it grow.

This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This project examines whether and what associations exist between numbers and letters and colors.

Examine whether males or females are more likely to have a higher center of gravity.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.