Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

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

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Is it a square or a circle? See if you can trick your friends with this zany science project!

In this project, different brands of microwave popcorn are tested and compared.

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

This science fair project idea identifies trees using a dichotomous key.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

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.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!