The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

In this science fair project, students evaluate if the phases of the moon affect the way people feel.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

Here's one way to recycle: turn a tuna can into a mini barbecue and teach your child the power of resourcefulness!

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

This experiment evaluates whether a person's eye color affects their ability to identify colors in low light.

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

Science fair project that examines the relationship between the size of a bubble and how quickly it falls. What is the correlation?

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

The purpose of this science fair experiment is to investigate whether the color of your hair affects how much static electricity is carried.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, too.

Get a fun high school physics science fair project idea one of the states of matter called plasma and the applications of this unique coil.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.