Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

This activity is a great introduction to polymer chemistry. It might seem complicated, but all you'll need is the material found inside of a baby's diaper!

Learn about the factors that influence group conformity.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

This science project researches the correlation between barometric pressure and wind velocity.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

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

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.