Galileo started a new way of working in science in which__________.

A. he made guesses about how things happened.        

B. he did experiments to see how things happened.

Dẫn chứng "Before galileo, scientists didn’t do experiments. They just guessed about how something happened. Galileo was different. He did not just make guesses. He did experiments and watched to see what happened."

Chọn B