Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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If acid gets on your skin, use __________ to wash it off.
a. | soap | c. | water | b. | lemon juice | d. | detergent |
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2.
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When heating substances in a test tube, be sure the open end points towards
_____.
a. | the teacher | c. | no other person | b. | you | d. | your lab
partner |
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3.
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Be sure your hands are ______ before you touch electronic devices.
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4.
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Never heat _____.
a. | flammable materials | c. | closed test tubes | b. | broken test tubes | d. | all of the
above |
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5.
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If you are not sure what to do ______.
a. | make an educated guess | c. | ask the teacher | b. | try to copy others in the
lab | d. | sit and
wait |
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