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Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

This project examines the concentration of dissolved oxygen in water, with and without oil.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

Do suds equal more clean or does a sud-free cleaning agent works just as well or even better?

Evaluate the efficacy of different pain management techniques.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.

This project will examine the relationship between materials and air resistance.

Make "fossils" with your child to hide in the sandbox or at the park or the beach, to help your child explore his archaeological side.

Science fair project that designs a video game that requires players to use relevant skills.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

This project concerns activity happening millions of miles away, on the sun.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

Here's a science and nature activity to help your kindergartener get outdoors and learn about the structure of leaves.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

This project examines whether playing music during class helps students learn or if it distracts students from learning.

This science project examines the thermal properties of several major greenhouse gases.

In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.