400
It is a hot sunny day. You and your brother decide to make ice cream. After turning the crank on the machine it is finally ready. You decide you want to make an ice cream cone. Then your brother wants one so you have to put yours down to make his. By the time you get back to yours it is a puddle of cream. List the states of matter the ice cream has at each stage. What kind of change is this?
What is liquid to solid (freezing) and solid to liquid (melting)?
Physical Change