How does this happen?????????????/?

Question

why does a water bottle thats empty but then put hot water in then poured out and then cold water over it squeeze up?

Answer 1

if this is the question i think your asking then i know the answer i now if you take an empty soda can fill it with a little warm water then boil it stick i into cold water quikly the can gets crushed because the water turns to stream and then when you dip it in the cold water the steam ammedeatly gose away meaning there is no are or any thing in there there is  litteraly nothing because of this the force of gravity on the outside of the can is stronger then that on the inside and then the can is crushed

Answer 2

This is not a food related question, more like science or the likes.

But to me is just a case of temperature in cheap plastic.