If you see something in the classroom or laboratory that is dangerous, tell the teacher
Rags or paper towels with flammable liquids or solids on or in them must be put in
Any spill on the floor can cause an accident. Always clean it up
Alcohol, acetone, and other volatile materials that can burn easily should never be used near
When you work with laboratory chemicals and bunsen burners, long hair must be
When you work with laboratory chemicals, equipment, or burners, you must wear
If you are injured (cut, burned, and so on) tell the
Whenever you are in the classroom or laboratory, you should wear
If you think there is something wrong with a piece of equipment you are using, stop, turn it off, and tell
If you break a piece of glassware or other equipment, tell the teacher
All floors, aisles, and passageways should be kept clear of
If you see a fire in an apparatus assembly or a burning liquid, such as alcohol, it is best to put it out with
To put out a fire on a person's clothing, use
The correct way to move about the classroom or laboratory is to
Helping to clean up the classroom or laboratory is the job of
When you use laboratory equipment or chemicals, you should give the procedure all of your
Chemicals, small parts, glassware, and stirring rods are NOT to be
To prevent accidents during laboratory activities with chemicals and equipment, you should
Playing (as opposed to working) in the laboratory or bothering another person is
To be able to put out a fire quickly and safely, you should know
If flammable liquids, such as alcohol, are spilled, you should first
Before you touch an electrical switch, plug, or outlet
Eyeglasses do not provide as much protection as
Laboratory aprons, when provided, are for
Cabinet drawers and doors that are left open cause a hazard and should be
If there is a fire in the laboratory, notify the teacher at once; then prepare to
All chemicals should be stored in
When preparing dilute solutions of an acid, carefully pour
If acid gets on your skin or clothes, wash at once with
Small quantities of spilled acids can be made safe with
Small amounts of spilled bases can be neutralized and made safe with
You must wear approved eye protection while working in the laboratory
Disturbing other students while they are working in the laboratory is
You should prepare for each laboratory activity by reading all instructions
When measuring small amounts of liquids with using a pipette, draw the liquid into the tube by using
When heating substances in a test tube, be sure the open end of the tube points towards
After heating glass tubing to bend it, the soonest you may safely handle the tubing is
To insert glass tubing into a rubbers topper, you should (after fire polishing and cooling)
To remove an electrical plug from its socket, you should