Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Make sourdough bread...and learn some colonial history and modern science in the process!

Help your kindergarten science maven explore the water cycle without getting everything wet.

Help your child plant a "tea garden": a garden made of herbs for making teas.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

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

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Learn whether writing things down really makes things easier to remember.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

This science fair project idea examines which type of insulation holds in the most heat.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Find out whether putting something on top of a plant will inhibit its growth.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.