Matter takes the shape of its container. Matter is made up of particles that are stationary. Matter consists of tightly packed particles. Matter is made up of particles called atoms.
I gave my students this multiple choice question: Which of the following statements applies to all states of matter?

Only one answer is correct among these 4 choices:
- Matter takes the shape of its container.
- Matter is made up of particles that are stationary.
- Matter consists of tightly packed particles.
- Matter is made up of particles called atoms.

Could you tell me which one is correct?

Matter is made up of particles called atoms.