Salt and Marble Mystery

Finding the toy surprise in your favorite breakfast cereal is never easy. Most of the time you're forced to dig through the cereal or dump it out just to find the lousy toy. Stop the digging! Believe it or not, there's a science to finding the toy surprise. A classic science puzzle will teach you how to make the toy surprise rise to the top of the cereal… without ever opening the box!

• Email
• Tweet