Question

Which of the following correctly describes the importance of demonstrations to a scientific investigation?

A. In a demonstration, empirical data is collected.

B. A demonstration is a process involving scientific investigation.

C. In a demonstration, the effect of one thing on another is measured.

D. A demonstration shows how something works, often including models.

Answer 1

I'd have to say A or D seems like either one of those would be right

Answer 2

The answer is D. Scientists often use models to show how something works