This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

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

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Free science fair project idea that examines the ergonomics of your environment. Redesign your living space to be better suited to your lifestyle.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

This project explores whether the tempo of the background music we hear in a businesses is important to the environment and how customers move.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Science far project which determines whether the material of a baseball bat affects the distance that the baseball will travel.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

Learn the anatomical and physiological differences between central and peripheral visual systems.

Check out this cool science fair project idea to explore the relationship between pulse rate and blood pressure in healthy people.

Do heavier objects fall faster than lighter ones? Students learn the answer by watching the effect gravity in a vacuum has on a coin and a feather.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.