Exam

Name___________________________________

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1)	Which of the following is not a chemical?	1) ______

	A)  table sugar
	B)  rust on your car
	C)  aspirin
	D)  distilled pure water
	E)  electricity

2)

The number of "chemicals" now known is

2) ______

	A)  changing too rapidly to even estimate.
	B)  countless.
	C)  in the high thousands.
	D)  about a million.
	E)  over 25 million.

3)

Chemicals are present in

3) ______

	A)  weed killers.
	B)  "health" food.
	C)  our bodies.
	D)  paints, pesticides, and drugs.
	E)  All of these choices are correct.