WorksheetsLaboratory Safety Test
Total questions: 38
Worksheet time: 19mins
If you see something in the classroom or laboratory that is dangerous, tell the teacher---
When you have time
At once
Never
After school
Rags or paper towels wit flammable liquids or solids on or in them must be put in--
A cardboard box
A wastebasket
A backpack
A metal container with lid
Any spill on the floor can cause an accident. Always clean it up--
At once
At the end of the period
When you have time
During clean up time
Alcohol, acetone, and other volatile materials that can burn easily should never be used near--
Another person
An open flame
A work table
The door
When you work with laboratory chemicals and Bunsen Burners, long hair must be--
cut off
combed nicely
kept out of the way by wearing a band, hat or hairnet
held with both hands
If you are injured (cut, burned, and so on) tell the ----
teacher at once
nurse at once
your friends at once
the doctor after school
Whenever you are in the classroom or laboratory, you should wear
a cute outfit
sandals
closed shoes
no shoes
When you work with laboratory chemicals, equipment, or burners, you must wear--
goggles
loose jewelry
contact lenses
loose clothes
If you think there's something wrong with a piece of equipment you are using, turn it off, and tell--
the custodian
the teacher
another student
the nurse
If you break a piece of glassware or other equipment, tell the teacher--
when you have a chance
at once
never
the next period
All floors, aisles, and passageways should be kept clear of --
teacher and students
laboratory equipment
chemicals
laboratory equipment and chemicals
If you see a fire in an apparatus assembly or a burning liquid, such as alcohol, it is best to put it out with--
your coat
the fire extinguisher
the fire blanket
water from the sink
To put out a fire in a person's clothing, use--
the fire blanket
The CO2 extinguisher
sulfuric acid
the wind from running
The correct way to move about the classroom or laboratory is to--
run
walk
skip
dance
Helping to clean up the classroom or laboratory is the job of --
new students
old students
each student
the teacher
When you use laboratory equipment or chemicals, you should give the procedure all of your--
interest
attention
effort
all of the above
Chemicals, small parts, glassware, and stirring rods are not to be --
used in the laboratory
put in your mouth
taken from boxes
put on the bench
To prevent accidents during laboratory activities with chemicals and equipment, you should--
use shortcuts
hurry ahead of teachers
follow teacher's directions
ask someone else to do the work
Playing (as opposed to working) in the laboratory or bothering another person is--
always against the rules
not dangerous
all right as long as you are working
all right
To be able to put out a fire quickly and safely, you should know--
how to use extinguishers
where the extinguishers are located
which extinguisher to use for each class of fire
All of the above
if flammable liquids, such as alcohol, are spilled, you should first--
let them dry up
tell the teacher
let them dry
pour water on them
Before you touch an electrical switch, plug or outlet--
your hands must be dry
your hands must be clean
ask the nurse
ask another student
Eyeglasses do not provide as much protection as--
a face shield
safety glasses
splash-proof goggles
Any of these (a, b or c)
Laboratory aprons, when provided, are for--
others to hang up
when you are wearing the best clothes
to protect you and your clothes
wiping your hands on
Cabinet doors and drawers that are left open cause a hazard and should be--
walked around
closed by you
left alone
closed by the teacher only
If there's a fire in the laboratory, notify the teacher at once, then prepare to--
open the windows
remove flammable materials
evacuate the building or laboratory
take a nap
All chemicals should be stored in --
tin cans
dark brown bottles
beautifully painted bottles
properly labeled containers
When preparing dilute solutions of an acid, carefully pour--
the acid into water
the water into acid
both liquids at once
some in the trashcan
If acid gets on your skin or clothes, wash at once with --
sulfuric acid
oil
soap
water
Small quantities of spilled acids can be made safe with --
gasoline
water
sodium bicarbonate solution
alcohol
Small amounts of spilled base can be made safe with
gasoline
alcohol
water
dilute acetic acid solution
You must wear approved eye protection while working in the laboratory--
to improve your vision
sometimes
to avoid myopia
whenever instructed by the teacher
Disturbing other students while they are working in the laboratory is--
helpful
poor manners
dangerous
the best way to get the work done
You should prepare for each laboratory activity by reading all instructions--
after school
while you are working
before you start to work
next week
when measuring small amounts of liquids with a pipette, draw the liquid into the tube by using--
your mouth
your nose
a pipette filler
the palm of your hand
When heating substances in a test tube, be sure to the open end of the tube points toward--
yourself
your partner
a classmate
no one
After heating glass tubing to bend it, the soonest you may safely handle it is--
within 30 seconds
after you are sure it is cool
after school
the next day
To remove an electrical plug from its socket, you should--
pull the plug itself
pull on the cord
pull on the appliance
none of these
