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

Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

This science fair project idea examines the differences between bottle water, filtered water, and tap water.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

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.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

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

This project involves the programming and development of a 3D Rubik's Cube application using C++.

The goal of this science fair project is to identify the galactic center of the milky way using globular clusters, as found through Google Earth.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This science fair project idea studies whether eating a hearty breakfast before and exam will get them better test scores.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

This science fair project idea explores discover whether there are any patterns or trends in the memories between different genders.

Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

Demonstrate the principle of jet propulsion in this science fair project by building a rocket from household materials.

This science fair project idea discovers the principle of conservation of mass.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

Set your teen on the beat in a real world "crime scene" investigation. Can he tell whose fingerprints are on a drinking glass?

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

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

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

Experiment with the wonders of pressure and condensation by crushing a soda can with nothing but air and water!

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves