The substance found in both cereal and paper is cellulose.

* Cereal: Cellulose is a major component of the cell walls of plants, which is why it's found in cereal grains.

* Paper: Paper is made from wood pulp, which is also primarily composed of cellulose.

So, the next time you enjoy a bowl of cereal, remember you're consuming the same type of material that makes up your newspaper or notebook!