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In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

Using a toy race car kids create a visual model of the Doppler Effect.

This science fair project idea explores the different properties of matter.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

This project will explore whether people are emotionally susceptible to suggestions of both humor and sorrow.

The goal of this fun science experiment is to explore the limitations of sight and learn working of the human eyes.

This project explores ways to prevent static electrical shocks.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Science fair project that creates fog using bottles of hot and cold water.

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This science fair project idea investigates the hardness property of minerals.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

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.

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

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

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.

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea examines whether boys and girls differ in reflexes.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.