Horseplay and practical jokes in the laboratory are -
okay if you are working alone.
okay.
not dangerous.
always against the rules.
When you are heating a substance in a test tube, you should always point the open end of the tube -
toward your partner.
toward yourself.
away from all people.
toward another classmate.
After completing an experiment, all chemical wastes should be -
left at your lab station for the next class.
disposed of according to your teacher’s directions.
taken home.
poured down the sink.
When gathering glassware and equipment for an experiment, you should -
clean any glassware that appears dirty.
examine all glassware to check for chips or cracks.
read all directions carefully to know what equipment youneed
do all of the above.
MSDS (SDS) is an abbreviation for -
Management Safety Data Sheet
Material Storage Data Sheet
Multiple Safety Data Sheet
Material Safety Data Sheet
If you get chemicals in your eye, you should wash out your eyes for -
3 minutes.
10 minutes.
5 minutes.
20 minutes.
All of the following are safe laboratory procedures except -
reading and rereading the laboratory instructions
securing all loose clothing & hair before lighting a Burner
handling any potential hot beaker with beaker tongs
returning unused samples to the original container
You have heated a piece of glass and want to pick it up. You should -
pick up the end that looks cooler.
pour cold water on it.
use a rag or paper towel.
use tongs.
In order to test the odor of fumes, you should -
place your nose directly over the opening of the container.
take a deep breath and inhale.
heat the substance before smelling it.
gently wave the fumes toward your nose.
If a piece of equipment is not working properly, stop, turn it off, and tell -
your best friend in class.
your lab partner.
the custodian.
your science teacher.
Which number on the Hazard Coding system label indicates the greatest hazard?
1
2
4
3
What area in the diamond of the NFPA chemical hazard label provides information on the chemical reactivity of the material?
White
Blue
Red
Yellow
Goggles are worn in the laboratory -
to improve your vision.
only if you don’t have corrective glasses.
to avoid eye strain.
any time chemicals, heat or glassware are used.
Flammable materials, like alcohol, should never be dispensed or used near
an open flame.
a sink.
another student.
an open door.
What area in the diamond of the NFPA chemical hazard label provides information on the flammability of the material?
Blue
White
Yellow
Red
an acid is splashed on your skin or in your eyes, rinse the affected area at once with -
soap.
weak base.
oil.
plenty of water.
If a laboratory fire erupts, immediately -
open the windows.
throw water on the fire.
run for the fire extinguisher.
notify your teacher.
The proper procedure for diluting an acid is to -
slowly add the water to the acid
quickly add the acid to the water
quickly add the water to the acid
slowly add the acid to the water
You have been injured in the laboratory. First you should -
see a doctor after school.
visit the school nurse after class.
apply first aid yourself.
tell the science teacher immediately.
Which of the following should not be worn in the laboratory?
Sandals
Loose clothing
Loose long hair
All of the above