1. Which of the following best describes an example of pure chemistry?
a) testing the effects of lower concentrations of a drug on humans
b) studying chemicals containing carbon
c) developing a cure for osteoporosis
d) finding an antidote for a new strain of virus
2. Which of the following can be observed only in a microscopic view?
a) foam insulation
b) X-ray of a knee joint
c) shape of a soybean plant
d) structure of a muscle cell
3. The variable that is observed during an experiment is called what type of variable?
a) independent
b) manipulated
c) controlling
d) responding
+4
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Home » Chemistry » 1. Which of the following best describes an example of pure chemistry? a) testing the effects of lower concentrations of a drug on humans b) studying chemicals containing carbon c) developing a cure for osteoporosis d) finding an antidote for a new