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

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

Slip some science into storm watching with a homemade rain gauge!

Can the force of air be used to propel a vehicle? This science experiment provides step-by-step instructions to help you answer this question.

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

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Learn about the factors that influence group conformity.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Kids learn about the color rendering index by finding the best lightning for makeup in this fun and original physics science fair project idea.

This experiment uses a voice recorder to monitor the progression of a message in the telephone game as it deviates from the original.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

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.

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!

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

Explore the concept of receptive fields and why different parts of our body have different levels of sensitivity.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.