Afriend is trying to describe a material to you. which of the following is not a description of a physical property of the substance? a. is red in color. b. is magnetic. c. en combined with water, it fizzes. d. melts at 240 c.

Scientists often deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each of these numbers in an alternate form.