Is everyone wearing goggles? Who will get the minerals from the shelf? What is the purpose of this investigation? Has someone volunteered to make drawings of the breaks?
I gave my students this multiple choice question: Before letting students use hammers to investigate how various minerals break, which question would the teacher most likely ask?

Only one answer is correct among these 4 choices:
- Is everyone wearing goggles?
- Who will get the minerals from the shelf?
- What is the purpose of this investigation?
- Has someone volunteered to make drawings of the breaks?

Could you tell me which one is correct?

Is everyone wearing goggles?