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Flammable materials, like alcohol, should never be
dispensed or used near
A. an open door.
B. an open flame.
C. another student.
D. a sink
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B
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If a laboratory fire erupts, immediately
A. notify your instructor.
B. run for the fire extinguisher.
C. throw water on the fire.
D. open the windows
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A
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Approved eye protection devices (such as goggles) are
worn in the laboratory
A. to avoid eye strain.
B. to improve your vision.
C. only if you don’t have corrective glasses.
D. any time chemicals, heat or glassware are used.
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D
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If you wear contact lenses in the school laboratory,
A. take them out before starting the lab.
B. you do not have to wear protective goggles.
C. advise your science instructor that you wear
contact lenses.
D. keep the information to yourself
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C
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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.
B. try several methods until something works.
C. ask the instructor before proceeding.
D. skip it and go on to the next part.
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C
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After completing an experiment, all chemical wastes
should be
A. left at your lab station for the next class.
B. disposed of according to your instructor’s directions.
C. dumped in the sink.
D. taken home
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B
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If a lab experiment is not completed, you should
A. discuss the issue with your instructor.
B. sneak in after school and work alone.
C. come in during lunch and finish while eating lunch.
D. make up some results.
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A
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You are heating a substance in a test tube. Always point the open end of the tube __________.
A. toward yourself.
B. toward your lab partner.
C. toward another classmate.
D. away from all people.
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D
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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.
B. pick up the end that looks cooler.
C. use tongs.
D. pour cold water on it.
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C
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You have been injured in the laboratory (cut, burn,
etc.). First you should ___________.
A. visit the school nurse after class.
B. see a doctor after school.
C. tell the science instructor at once.
D. apply first aid yourself.
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C
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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.
B. examine all glassware to check for chips or cracks.
C. clean any glassware that appears dirty.
D. All of the above.
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D
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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. lubricating the tubing with water or glycerin.
B. using a towel or cotton gloves for protection.
C. twisting the tubing and stopper carefully.
D. all of the above.
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D
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Personal eyeglasses provide as much protection as
A. a face shield.
B. safety glasses.
C. splashproof chemical goggles.
D. none of the above.
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D
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Long hair in the laboratory must be
A. cut short.
B. held away from the experiment with one hand.
C. always neatly groomed.
D. tied back or kept entirely out of the way with a hair
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D
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In a laboratory, the following should not be worn.
A. loose clothing.
B. dangling jewelry.
C. sandals.
D. all of the above.
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D
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The following footwear is best in the laboratory.
A. sandals
B. open-toed shoes
C. closed-toed shoes
D. shoes appropriate for the weather
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C
|
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Horseplay or practical jokes in the laboratory are
A. always against the rules.
B. okay.
C. not dangerous.
D. okay if you are working alone
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A
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If a piece of equipment is not working properly, stop,
turn it off, and tell
A. the custodian.
B. your lab partner.
C. your best friend in the class.
D. the science instructor
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D
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If an acid is splashed on your skin, wash at once with
A. soap.
B. oil.
C. weak base.
D. plenty of water.
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D
|
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When you finish working with chemicals, biological
specimens, and other lab substances, always
A. treat your hands with skin lotion.
B. wash your hands thoroughly with soap and water.
C. wipe your hands on a towel.
D. wipe your hands on your clothes.
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B
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If a fire erupts, immediately
A. notify the teacher.
B. run for the fire extinguisher.
C. throw water on the fire.
D. open the windows.
|
A
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When handling animals, students should
A. open cages only with permission.
B. not tease or handle animals roughly.
C. report bites or scratches to the teacher
immediately.
D. All of the above.
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D
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The following activity is permitted in the
laboratory:
A. chewing gum
B. eating
C. drinking
D. None of the above.
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D
|
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When using a razor blade or scalpel, always
cut material
A. away from you.
B. toward you.
C. in your hand.
D. perpendicular.
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A
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Before you leave the science room, you should
A. clean your work area and equipment.
B. return all equipment to the proper storage
area.
C. wash your hands with soap and water.
D. All of the above
|
D
|
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The best way to identify a chemical is to …………….
A. smell it
B. taste it
C. read the label
D. use a straw
|
C
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Any spill on the floor can cause an accident. Always clean it up
A. at once
B. during clean up time
C. when you have time
D. at the end of the period
E. when someone else notices
|
A
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Alcohol, acetone, and other volatile materials that can burn easily should never be used near
A. another person
B. an open flame
C. a laboratory counter
D. a work table
|
B
|
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When you work with laboratory chemicals that pose a splash hazard, you must always wear
A. loose clothing
B. safety goggles
C. contact lenses
D. loose jewelry
|
B
|
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Whenever you are in the classroom or laboratory working on an experiment, you should wear
A. sandals
B. closed-toe shoes
C. open-toed shoes
D. no shoes
|
B
|
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All the floors, aisles, and passageways should be kept clear of
A. electrical cords
B. laboratory equipment & chemicals
C. backpacks
D. All of the above
|
D
|
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To put out a fire in a person’s clothing, use
A. the fire blanket
B. a handy chemical
C. the wind from running
D. the shower
|
A
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Chemicals, small parts, glassware, and stirring rods are not to be
A. used in the laboratory
B. put in the mouth
C. put on the bench
D. taken from boxes
|
B
|
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In the event of a fire in the laboratory, you should
I. secure your own immediate safety
II. notify your teacher
III. evacuate the building
IV. Pour water on the fire
A. I
B. I, II, III
C. II
D. IV
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B
|
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When preparing dilute solutions of an acid _______.
A. slowly pour the acid into the water
B. slowly pour the acid into the container
C. carefully pour water into the acid
D. swiftly pour the acid into the water
|
A
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When heating substances in a test tube, be sure the open end of the tube points toward ________.
A. yourself
B. no one
C. your partner
D. a classmate
|
B
|
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The correct way to move about the clasroom or laboratory is to _________.
A. run
B. walk
C. hurry
D. skip
|
B
|
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All chemicals should be stored in _______.
A. beakers
B. dark brown bottles
C. clear glass bottles
D. properly and clearly labeled containers
|
D
|
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You should prepare for each laboratory activity by reading all instructions __________.
A. after school
B. while you are working
C. before you start to work
|
C
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Which of the following is considered to be personal protection equipment for our lab?
A. spill kit
B. fire blanket
C. goggles
D. fire extinguisher
|
C
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Protective clothing and equipment, such as gloves and lab coats, should be removed before leaving the laboratory primarily because ___________.
A. visitors may be frightened by the strange clothing
B. contaminants may be transferred to persons or objects outside the lab
C. one may forget to return the gear to the lab
D. someone may mistake you as a doctor
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B
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