oil, air, and rock water, air, and milk sand, ice, and wood nail, stick, and paper
I gave my students this multiple choice question: Which list includes only examples of matter that can take the shape of a container?

Only one answer is correct among these 4 choices:
- oil, air, and rock
- water, air, and milk
- sand, ice, and wood
- nail, stick, and paper

Could you tell me which one is correct?

water, air, and milk