Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This science fair project idea experiments with spinning color wheels and optical illusions.

What happens when colored beams of light mix? You might be surprised.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

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

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.