During which changes of state do atoms that cannot move past one another become free to move?

In a ________, substances have no definite volume and particles move very quickly.

In a ________, molecules are close together and vibrate but do not flow.

A substance that has a definite shape and a definite volume is a ________.

Which best describes why a liquid needs a container, while a solid does not?

Materials can be classified as solids liquids or gases based on whether their shapes and

In which phase(s) are the molecules held in a defined shape?

Which state of matter is characterized by having a definite shape and a definite volume?

Which substance most likely consists of atoms that are able to slide past one another?