Lab Safety Quiz Review

Flammable materials, like alcohol, should never be dispensed or used near

• an open door.
• an open flame.
• another student
• a sink

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 (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.

After completing an experiment, all chemical wastes should be

• left at your lab station for the next class.
• disposed of according to your instructor's directions.
• dumped in the sink.
• taken home.

If a lab experiment is not completed, you should

• discuss the issue with your instructor.
• sneak in after school and work alone.
• come in during lunch and finish while eating lunch
• make up some results.

You are heating a substance in a test tube.  Always point the open end of the tube

• toward yourself.
• toward your lab partner.
• toward another classmate.
• away from all people.

You are heating a piece of glass and now want to pick it up.  You should

• use a rag or paper towel.
• pick up the end that looks cooler.
• use tongs.
• pour cold water on it.

When gathering glassware and equipment for an experiment, you should

• read all directions carefullyl to know what equipment is necessary.
• examine all glassware to check for chips or cracks.
• clean any glassware that appears dirty.
• All of the above.

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

• lubricating the tubing with water or glycerin.
• using a towel or cotton gloves for protection.
• twisting the tubing and stopper carefully.
• All of the above.

Personal eyeglasses provide as much protection as

• a face shield.
• safety glasses.
• splash-proof chemical goggles.
• None of the above.