LABORATORY SAFETY QUIZ

The following footwear is best in the laboratory.

• sandals

• closed-toed shoes

• open-toed shoes

• flip flops

In the lab, the following should not be worn.

• loose clothing

• sandals

• dangling jewelry

• all of these

Fooling around or practical jokes in the lab are

• always against the rules.

• OK if working alone.

• risky but OK if you are careful.

• OK if the teacher is not present.

Approved eye protection devices (such as goggles) are worn in the laboratory

• to avoid eye strain.

• to improve your vision

• only if you wear contact lenses.

• anytime you are at a lab station.

If you are not sure if glassware is hot or cool, assume that it is hot. To pick up hot glassware,

• first test to see if you can handle the heat by touching it with your bare hand or fingers.

• fold paper towels into a thick pad, then use it to pick up the glassware.

• use tongs or thermal gloves to handle the glassware.

• use the water dispenser to spray cold water onto the glassware to cool it down.

Before using glassware for a lab, always

• check for cracks or chips in the glass.

• assume that it is dirty and clean it with soap and water.

• get thermal gloves and have them ready to pick up hot glassware.

• check to see if there is any writing on it.

"Wafting" refers to the method of

• drying wet glassware by moving it back and forth in the air to dry it.

• waving your hand above an open container to move a substance's odor toward your nose.

• smelling a substance by placing your nose directly over an open container and sniffing the substance.

• moving wet glassware back and forth through an empty flame until it is dry.

After completing an experiment, all chemical

wastes should be:

• left at your station for the next class.

• disposed of according to the teacher’s

  directions.

• poured down the drain

• taken home

You are heating a substance in a test tube.

You should always:

• point the open end away from people.

• put a stopper in the end of the test tube and continue to heat it.

• look into the test tube from time to time to see if the substance is getting hot.

• hold the test tube with your fingers.

Long hair in the laboratory must be:

• cut short.

• held away from flames by one hand.

• always neatly groomed.

• tied back.