Answer;
crushing an aluminum soda can
Step-by-step explanation;
-A physical change is a type of change in which the form of matter (substance) is altered but one substance is not transformed into another different substance. For example, Crushing an aluminium soda can : after crushing can changes its shape, size but it still remain Aluminum so it is a physical change.
-A chemical change is a process where one or more substances are altered into one or more new and different substances.