You are presented with the quiz "What stays the same when an item is made of a material?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if an object is made of a material then that object has the properties of that material" and "properties can be used to separate or sort a group of objects or materials". 

So, what's the best answer to the question?


 

 properties          