What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

This experiment explores whether music affects the growth of bacteria and could help figure out better ways to process sewage and other microbe-assisted duties.

In this science fair project, students will use four different household objects to see which ones form the most or best crystals.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea explores whether the types and brands of faucet filters are relevant to their performance.

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

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

This project examines whether corked bats truly make a ball travel farther than wooden bats that haven't been altered.

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Measure temperature change over time using a variety of insulation materials. Be creative with insulation materials: scarves, yarn, socks, feathers, oil, etc

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.

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

Science fair project which examines the chemical reaction of a candle flame with various gases in order to determine the identity of the gas.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

This experiment will investigate whether reward or punishment is more apt to motivate people.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

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

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.