NEW
Font size
WorksheetsScience Laboratory Safety and Equipment Test
Total questions: 50
Worksheet time: 26mins
Flammable materials, like alcohol, should never be dispensed or used near
an open door
an open flame
another student
a sink
If a laboratory fire erupts, immediately
notify your instructor
run for the fire extinguisher
throw water on the fire
open the windows
Approved eye protection devices (such as goggles) are worn in the laboratory
to avoid eye strain
to improve your vision
only if you have corrective lenses
any time chemicals, heat or glassware are used
If you wear contact lenses in the school laboratory
take them out before starting the lab
you do not have to wear protective goggles
advise your science instructor that you wear contact lenses
keep the information to yourself
If you do not understand a direction or part of a lab procedure, you should
figure it out as you do the lab
try several methods until something works
ask the instructor before proceeding
skip it and go on to the next part
After completing an experiment, all chemical wastes should be
left at your lab station for the next class
disposed of according to your instructor’s directions
dumped in the sink
taken home
If a lab experiment is not completed, you should
discuss the issue with your instructor
sneak in after school and work alone
come in during lunch and finish while eating lunch
make up some results
You are heating a substance in a test tube. Always point the open end of the tube
toward yourself.
toward your lab partner
toward another classmate
away from all people
You are heating a piece of glass and now want to pick it up. You should
Use a rag or paper towel
pick up the end that looks cooler
use tongs
pour cold water on it
You have been injured in the laboratory (cut, burn, etc.). First you should
visit the school nurse after class
see a doctor after school
tell the science instructor at once
apply first aid yourself
When gathering glassware and equipment for an experiment, you should
read all directions carefully to know what equipment is necessary
examine all glassware to check for chips or cracks.
clean any glassware that appears dirty
All of the above
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
lubricating the tubing with water or glycerin
using a towel or cotton gloves for protection
twisting the tubing and stopper carefully
all of the above
Long hair in the laboratory must be
cut short
held away from the experiment with one hand
always neatly groomed
tied back or kept entirely out of the way with a hair band, hairpins, or other confining device
In a laboratory, the following should not be worn.
loose clothing
dangling jewelry
sandals
all of the above
The following footwear is best in the laboratory
sandals
open-toed shoes
closed-toed shoes
shoes appropriate for the weather
Horseplay or practical jokes in the laboratory are
always against the rules
okay
not dangerous
okay if you are working alone
If a piece of equipment is not working properly, stop, turn it off, and tell
the custodian
your lab partner
your best friend in the class
the science instructor
If an acid is splashed on your skin, wash at once with
soap
oil
a weak base
plenty of water
. When you finish working with chemicals and other lab substances, always
treat your hands with skin lotion
wash your hands thoroughly with soap and water
wipe your hands on a towel
wipe your hands on your clothes
Hot glass looks the same as cold glass.
True
False
All chemicals in the lab are to be considered dangerous.
True
False
Return all unused chemicals to their original containers.
True
False
Work areas should be kept clean and tidy
True
False
Pipets are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipet using your mouth.
True
False
Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.
True
False
Never remove chemicals or other equipment from the laboratory
True
False
Chipped or cracked glassware is okay to use
True
False
Read all procedures thoroughly before entering the laboratory.
True
False
All unauthorized experiments are prohibited.
True
False
You are allowed to enter the chemical preparation/storage area any time you need to get an item.
True
False
Laboratory aprons should be worn during all lab activities.
True
False
It’s okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.
True
False
Never leave a lit burner unattended.
True
False
100.00
100000000
4004
0.00400
What is the measurement in the following picture to the greatest degree of precision?
43
43.0
43.0 mL
43.00 mL
What is the measurement in the following picture to the greatest degree of precision?
1.6 cm
1.60 cm
1.66 cm
1.660 cm
