Lab Safety

If a laboratory fire erupts, immediately

• Open the window

• Run to the fire extinguisher

• Tell the instructor immediately

• Throw water on the fire

Approved eye protection devices (such as goggles) are

worn in the laboratory

• to avoid eye strain.

• to improve your vision.

• only if you don’t have corrective glasses

• any time chemicals, heat or glassware are used.

If you do not understand a direction or part of a lab

procedure, you should

• figure it out as you do the lab.

• ask the instructor before proceeding.

• try several methods until something works.

• 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.

• 
  dumped in the sink.

• disposed of according to your instructor’s

  directions.

• taken home.

 You are heating a piece of glass and now want to pick

it up. You should

• use a rag or paper towels.

• 
  use tongs.

• pick up the end that looks cooler.

• pour cold water on it.

You have been injured in the laboratory (cut, burn,

etc.). First you should

• visit the school nurse after class.

• 
  tell the science instructor at once.

• see a doctor after school.

• apply first aid yourself.

 Long hair in the laboratory must be

• 
  cut short.

• 
  always neatly groomed.

• 
  

  held away from the experiment with one hand.

• 
  

  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.

• 
  sandals.

• 
  dangling jewelry.

• all of these

Horseplay or practical jokes in the laboratory are

• 
  always against the rules.

• not dangerous.

• okay.

• okay if you are working alone.

 If an acid is splashed on your skin, wash at once with

• soap

• weak base

• oil

• plenty of water