There are certain things that people look for if a chemical reaction has taken place or not. Some of these characteristics are the following: you are going to detect a change in color. You are also going to detect that there is a change in the smell. You can expect that there is a temperature change.
There are some items that will react that way. This means that cutting paper is not a type of chemical change because the paper is still the same. It is still paper. The only difference is that its shape and size are different. When you burn paper, that is when a chemical reaction takes place because the paper turns to ash.