The work of scientists usually begins with B). careful observations.
A scientist has to first observe his work carefully so that he can form a theory or hypothesis . Then he has to devise an experiment which will verify his theory.
Added 346 days ago|3/25/2013 7:37:38 AM
The work of scientists usually begins with creating experiments.
Added 347 days ago|3/24/2013 6:08:12 AM