Lab Safety

If a laboratory fire erupts, immediately

• notify your instructor.

• run for the fire extinguisher.

• throw water on the fire.

• open the windows.

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.

You have been injured in the laboratory (cut, burn,etc.). First you should

• tell the science instructor at once.

• visit the school nurse after class.

• see a doctor after school.

• apply first aid yourself.

In a laboratory, the following should not be worn.

• all of the above.

• sandals.

• dangling jewelry.

• loose clothing.

Horseplay or practical jokes in the laboratory are

• not dangerous.

• okay.

• always against the rules.

• okay if you are working alone

If a piece of equipment is not working properly, stop,turn it off, and tell

• the custodian.

• your lab partner.

• your best friend in the class.

• the science instructor.

Long hair in the laboratory must be

• cut short.

• held away from the experiment with one hand.

• always neatly groomed.

• tied back or kept entirely out of the way with a hair band, hairpins, or other confining device.

If you do not understand a direction or part of a lab procedure, you should

• skip it and go on to the next part.

• ask the instructor before proceeding.

• try several methods until something works.

• figure it out as you do the lab.

After completing an experiment, all chemical wastes should be

• disposed of according to your instructor’s directions

• left at your lab station for the next class.

• dumped in the sink.

• taken home.

Tags

NGSS.MS-ESS3-3

Hot glass looks the same as cold glass

• true

• false