If two minerals have the same chemical composition but cleave into different shapes, which must be true? a. they have different streaks. b. they have different arrangements of atoms. c. they have different hardnesses. d. they have different colors.

Which best describes the scientific method? a. a path of clearly defined steps that must be followed in a particular order b. a possible answer to a scientific question based on knowledge or research c. the recipe for how to conduct an experiment that must be followed precisely d. the process of hypothesis and testing through which scientific inquiry occurs