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

Gold's natural state has a definite shape and a definite volume. What is gold's natural state(s)?

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 ________.

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

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?