True/False
Indicate whether the
statement is true or false.
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1.
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Never remove chemicals or other
equipment from the laboratory.
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2.
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You are allowed to enter the
chemical preparation/storage area any time you need to get an item.
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3.
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Never leave a lit burner
unattended.
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4.
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Work areas should be kept clean
and tidy.
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5.
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Hot glass looks the same as
cold glass.
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6.
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lt’s okay to pick up
broken glass with your bare hands as long as the glass is placed in the trash.
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7.
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All unauthorized experiments
are prohibited.
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8.
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Return all unused chemicals to
their original containers.
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9.
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Laboratory Work can be started
immediately upon entering the laboratory even if the instructor is not yet
present.
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10.
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Read all procedures thoroughly
before entering the laboratory.
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11.
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Pipets are used to measure and
dispense small amounts of liquids. You should draw the liquid into the pipet using your
mouth.
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12.
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All chemicals in the lab are to
be considered dangerous.
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13.
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Chipped or cracked glassware is
okay to use.
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14.
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Laboratory aprons should be
worn during all lab activities.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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15.
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If a piece of equipment is not
working properly, stop, turn it off, and tell
a. | the
custodian, | c. | your best friend
in the class. | b. | your lab partner. | d. | the science instructor. |
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16.
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If you do not understand a
direction or part of a lab procedure, you should
a. | figure it out as you do the
lab | c. | ask the instructor before
proceeding | b. | try several methods until something works | d. | skip it and go on to the next
part. |
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17.
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If a laboratory fire erupts,
immediately
a. | notify your
instructor | c. | throw water on the
fire. | b. | run for the fire extinguisher | d. | open the windows. |
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18.
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After completing an experiment.
all chemical wastes should be
a. | left at your lab station for the
next class. | c. | dumped in the
sink | b. | disposed of according to your instructors
directions | d. | taken
home. |
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19.
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Flammable materials, like
alcohol, should never be dispensed or used near
a. | an open
door | c. | another
student | b. | an open flame | d. | a sink. |
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20.
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If you wear contact lenses in
the school laboratory,
a. | take them out before starting the
lab. | c. | advise your science instructor that
you wear contact lenses. | b. | you do not have to wear protective goggles | d. | keep the information to
yourself.
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21.
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When gathering glassware and
equipment for an experiment, you should
a. | read all directions carefully to
know what equipment is necessary. | c. | clean any glassware that appears dirty. | b. | examine all glassware to check for chips or
cracks | d. | All of the
above. |
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22.
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Approved eye protection devices
(such as goggles) are worn in the laboratory
a. | to avoid eye
strain. | c. | only if you
don’t have corrective glasses. | b. | to improve your vision. | d. | any time chemicals, heat or glassware are
used. |
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23.
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The following footwear is best
in the laboratory.
a. | sandals | c. | closed-toed shoes | b. | open-toed shoes | d. | shoes appropriate for the
weather |
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24.
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Horseplay or practical jokes in
the laboratory are
a. | always against the
rules. | c. | not
dangerous | b. | okay | d. | okay if you are working
alone. |
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25.
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When you finish working with
chemicals, biological specimens, and other lab substances, always
a. | treat your hands with skin
lotion | c. | wipe your hands on a
towel. | b. | wash your hands thoroughly with soap and
water. | d. | wipe your hands on your
clothes. |
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26.
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You are heating a piece of
glass and now want to pick it up. You should
a. | use a rag or paper
towels. | c. | use
tongs. | b. | pick up the end that looks cooler | d. | pour cold water on it. |
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27.
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Personal eyeglasses provide as
much protection as
a. | a face
shield | c. | splash proof chemical
goggles. | b. | safety glasses | d. | none of the above. |
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28.
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If a lab experiment is not
completed, you should
a. | discuss the issue with your
instructor | c. | come in during
lunch and finish while eating lunch. | b. | sneak in after school and work alone | d. | make up some results. |
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29.
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You are heating a substance in
a test tube. Always point the open end of the tube
a. | toward
yourself | c. | toward another
classmate | b. | toward your lab partner. | d. | away from all people. |
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30.
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In a laboratory the following
should not be worn.
a. | loose
clothing | c. | sandals | b. | dangling jewelry. | d. | all of the above. |
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31.
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If an acid is splashed on your
skin, wash at once with
a. | soap | c. | weak base. | b. | oil. | d. | plenty of water |
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32.
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You want to place a piece of
glass tubing into a rubber stopper after the tubing has been fire polished and cooled. This is best
done by
a. | ubricating the tubing with water or
glycerin. | c. | twisting the
tubing and stopper carefully | b. | using a towel or cotton gloves for
protection | d. | all of the
above. |
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33.
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You have been injured in the
laboratory (cut, burn, etc.). First you should
a. | visit the school nurse after
class | c. | tell the science instructor at
once | b. | see a doctor after school. | d. | apply first aid yourself. |
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34.
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Long hair in the laboratory
must be
a. | cut
short | c. | always neatly
groomed | b. | held away from the experiment with one hand | d. | tied back or kept entirely out of the way with a hair band, hairpins, or other
confining device. |
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