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WorksheetsScience Lab Safety
Total questions: 53
Worksheet time: 18mins
Name
Class
Date
1.
When you see a fire in the laboratory, what should you do immediately? (Choose 2)
a)
Get the fire extinguisher and put out the fire thoroughly.
b)
Get the fire blanket, and smother the fire.
c)
Pour water over the fire.
d)
Run from the room, leaving the door open for easy access, to call an emergency number.
2.
What is/are the appropriate symbol or symbols for hazards posed by the Bunsen burner? (More than one answer may be correct.)
a)
symbol/icon for fire hazard
b)
symbol/icon for poison hazard
c)
symbol/icon for eye hazard
d)
symbol/icon for hand hazard
e)
symbol/icon for electrical hazard
3.
Never leave an open flame unattended.
a)
true
b)
false
4.
Always read the label on a container before removing any of the material in the container.
a)
true
b)
false
5.
The open end or mouth of a test tube should never be pointed toward you or anyone else.
a)
true
b)
false
6.
When anything spills in the laboratory, the teacher should be notified right away.
a)
true
b)
false
7.
It is necessary to report even minor laboratory accidents to the teacher.
a)
true
b)
false
8.
Long hair should be tied back when working in the laboratory with chemicals.
a)
true
b)
false
9.
The location of a fire extinguisher and fire blanket should be known by everyone in the laboratory.
a)
true
b)
false
10.
Hot glass looks the same as cold glass.
a)
true
b)
false
11.
All chemicals in the lab are to be considered dangerous.
a)
true
b)
false
12.
Work areas should be kept clean and tidy.
a)
true
b)
false
13.
Never remove chemicals or other equipment from the laboratory.
a)
true
b)
false
14.
Read all procedures thoroughly before entering the laboratory.
a)
true
b)
false
15.
All unauthorized experiments are prohibited.
a)
true
b)
false
16.
Never leave a lit burner unattended.
a)
true
b)
false
17.
Laboratory aprons should be worn during all lab activities.
a)
true
b)
false
18.
The laboratory is an ideal place for practical jokes.
a)
false
b)
true
19.
It is a good idea to show your independence by performing experiments that have not been approved by your teacher.
a)
false
b)
true
20.
Always return unused chemicals to their original containers so as not to waste them.
a)
false
b)
true
21.
It is generally necessary to place your nose directly over a container to smell the material in the container.
a)
false
b)
true
22.
If you wear contact lenses, it is not necessary to wear safety goggles in the laboratory.
a)
false
b)
true
23.
If you are not working with chemicals, it is all right to wear open sandals in the laboratory.
a)
false
b)
true
24.
It is safest to heat the contents of test tubes in a flame while seated.
a)
false
b)
true
25.
Loose clothing and jewelries are necessary in the laboratory.
a)
false
b)
true
26.
Return all unused chemicals to their original containers.
a)
false
b)
true
27.
Pipets are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipet using your mouth.
a)
false
b)
true
28.
Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.
a)
false
b)
true
29.
Chipped or cracked glassware is okay to use.
a)
false
b)
true
30.
You are allowed to enter the chemical preparation/storage area any time you need to get an item.
a)
false
b)
true
31.
It’s okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.
a)
false
b)
true
32.
After completing an experiment, all chemical wastes should be
a)
disposed of according to your instructor’s directions.
b)
left at your lab station for the next class.
c)
dumped in the sink.
d)
taken home.
33.
Approved eye protection devices (such as goggles) are worn in the laboratory
a)
any time chemicals, heat or glassware are used.
b)
to avoid eye strain.
c)
to improve your vision.
d)
only if you don’t have corrective glasses.
34.
Flammable materials, like alcohol, should never be dispensed or used near
a)
an open flame.
b)
an open door.
c)
another student.
d)
a sink.
35.
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.
36.
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.
37.
If you do not understand a direction or part of a lab procedure, you should
a)
ask the instructor before proceeding.
b)
figure it out as you do the lab.
c)
try several methods until something works.
d)
skip it and go on to the next part.
38.
If you wear contact lenses in the school laboratory,
a)
advise your science instructor that you wear contact lenses.
b)
take them out before starting the lab.
c)
you do not have to wear protective goggles.
d)
keep the information to yourself.
39.
Which of the heating sources listed below can cause an electrical hazard if not properly used?
a)
Hot plate
b)
Bunsen burner
c)
Candle
d)
Radiator
40.
While you are using a piece of electrical equipment, you notice it has a frayed wire. What should you do first?
a)
Alert the teacher.
b)
Turn off the circuit breaker or unplug the fuse to turn off the power.
c)
Unplug the equipment.
d)
Continue the experiment with a replacement piece of equipment.
41.
You are heating a piece of glass and now want to pick it up. You should
a)
use tongs.
b)
use a rag or paper towels.
c)
pick up the end that looks cooler.
d)
pour cold water on it.
42.
You are heating a substance in a test tube. Always point the open end of the tube
a)
away from all people.
b)
toward yourself.
c)
toward your lab partner.
d)
toward another classmate.
43.
You have been injured in the laboratory (cut, burn, etc.). First you should
a)
tell the science instructor at once.
b)
visit the school nurse after class.
c)
see a doctor after school.
d)
apply first aid yourself.
44.
Long hair in the laboratory must be
a)
tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.
b)
cut short.
c)
held away from the experiment with one hand.
d)
always neatly groomed.
45.
When gathering glassware and equipment for an experiment, you should
a)
All of these
b)
read all directions carefully to know what equipment is necessary.
c)
examine all glassware to check for chips or cracks.
d)
clean any glassware that appears dirty.
46.
In a laboratory, the following should not be worn.
a)
all of these
b)
loose clothing.
c)
dangling jewelry.
d)
sandals.
47.
Personal eyeglasses provide as much protection as
a)
none of these.
b)
a face shield.
c)
safety glasses.
d)
splashproof chemical goggles.
48.
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)
All of these
b)
lubricating the tubing with water or glycerin.
c)
using a towel or cotton gloves for protection.
d)
twisting the tubing and stopper carefully.
49.
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.
50.
The following footwear is best in the laboratory.
a)
closed-toed shoes
b)
sandals
c)
open-toed shoes
d)
shoes appropriate for the weather
51.
If an acid is splashed on your skin, wash at once with
a)
plenty of water.
b)
soap.
c)
oil.
d)
weak base.
52.
When you finish working with chemicals, biological specimens, and other lab substances, always
a)
wash your hands thoroughly with soap and water.
b)
treat your hands with skin lotion.
c)
wipe your hands on a towel.
d)
wipe your hands on your clothes.
53.
If a piece of equipment is not working properly, stop, turn it off, and tell
a)
the science instructor.
b)
the custodian.
c)
your lab partner.
d)
your best friend in the class.
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