Flammable materials, like alcohol, should never be dispensed or used near:
If a laboratory fire erupts, immediately:
Approved eye protection devices (such as goggles) are worn in the laboratory:
If you wear contact lenses in the school laboratory:
If you do not understand a direction or part of a lab procedure, you should:
After completing an experiment, all chemical wastes should be:
If a lab experiment is not completed, you should:
You are heating a substance in a test tube. Always point the open end of the tube:
You are heating a piece of glass and now want to pick it up. You should:
You have been injured in the laboratory (cut, burn, etc.). First you should:
When gathering glassware and equipment for an experiment, you should:
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:
Personal eyeglasses provide as much protection as:
Long hair in the laboratory must be:
In a laboratory, the following should not be worn:
The following footwear is best in the laboratory:
Horseplay or practical jokes in the laboratory are:
If a piece of equipment is not working properly, stop, turn it off, and tell:
If an acid is splashed on your skin, wash at once with:
When you finish working with chemicals, biological specimens, and other lab substances, always:
Draw a diagram of your science room and label the locations of the following:
Fire Blanket, Fire Extinguisher(s), Exits, Eyewash Station, Emergency Shower, Closest Fire Alarm Station, Waste Disposal Container(s)
Hot glass looks the same as cold glass.
All chemicals in the lab are to be considered dangerous.
Return all unused chemicals to their original containers.
Work areas should be kept clean and tidy.
Pipets are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipet using your mouth.
Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.
Never remove chemicals or other equipment from the laboratory.
Chipped or cracked glassware is okay to use.
Read all procedures thoroughly before entering the laboratory.
All unauthorized experiments are prohibited.
You are allowed to enter the chemical preparation/storage area any time you need to get an item.
Laboratory aprons should be worn during all lab activities.
It’s okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.
Never leave a lit burner unattended.