You are presented with the question "what can change shape from smooth into compacted by physical force?" and the following answer choices: 
- A ruler
 - bushes
 - paper
 - streams
 - crust
 - dirt
 - cracks
 - rock

Now knowing that crumple means change shape from smooth into compacted by physical force and cellophane or paper crumpled in ball sizes, choose the best answer.


 

   paper      