Question

What happens to the size of the material when it is cooled?​

Answer 1

Answer:

Most materials contract when they are cooled and get bigger when they are warmed up. Negative thermal expansion occurs when, during heating, a crystal contracts along one or more crystal axes, while positive thermal expansion describes what happens when the material expands along one or more of these axes.

Answer 2

Most materials contract when they are cooled and get bigger when they are warmed up. Negative thermal expansion occurs when, during heating, a crystal contracts along one or more crystal axes, while positive thermal expansion describes what happens when the material expands along one or more of these axes.

hope it's help..