This science fair project idea explores which kinds of earplugs are the most effective.

Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

The project researches how lubricants affect the mechanical advantage of a pulley.

Are you able to endure long periods of exercise? Find out if snorers can exercise longer than non-snorers.

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

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.

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.

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.

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.

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