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