LAB SAFETY QUIZ/ AmatuzziName ______Period ____

PART I: Write the letter of the choice that best completes each statement.

_____1. When working in the laboratory,

  1. Wear loose clothing for maximum freedom of movement
  2. Tie back long hair
  3. Wear contact lenses rather than eyeglasses so goggles are more comfortable
  4. Wear long loose sleeves to protect your arms
  5. All of the above

_____ 2. Food may be brought into the laboratory if

  1. It is kept in your backpack
  2. It does not produce crumbs or waste
  3. You do not eat it until your lab work is finished
  4. You share it with others during the lab
  5. None of the above

_____3. You may taste the product of a chemical test or reaction if

  1. Your teacher instructs you to do so
  2. Your lab manual instructs you to do so
  3. You think you know what the substance is
  4. You dissolve it in water first

_____ 4. Your notebook accidentally catches fire during an experiment. You should first

  1. Notify your teacher
  2. Throw it on the floor and shout to classmates to leave the area
  3. Get the fire extinguisher and read the operating instructions
  4. Carry it to the fume hood

_____ 5. After heating a flask or beaker, it is best to

  1. Run water over the glass to cool it quickly
  2. Place it on a cool lab table
  3. Place it on an insulating pad or surface
  4. Test its temperature by touching it lightly with a fingertip

_____ 6. The laboratory procedure calls for the use of a scalpel, but you do not have one. You do have

a single-edged razor blade and sharp scissors. The best thing to do is to

  1. Use the single-edged razor bladec. ask your teacher which tool to sue
  2. Use the scissorsd. skip this part of the procedure

_____ 7. You find a bottle of liquid on the laboratory shelf that is missing a label. You should

  1. Pour the contents of the bottle down the drain
  2. Give the bottle to your teacher
  3. Try to find another bottle that looks exactly like it and assume that the first bottle contains the same substance
  4. Try to identify the liquid by tasting one drop or smelling it

_____ 8. Your laboratory manual directs you to mix solution A with solution B in a clean beaker, and

label the beaker. You should

  1. Not bother labeling the beaker if it is the only one you are going to use
  2. Pour solution A into the beaker and mark it “A”; then add solution B and change the marking to “A + B”
  3. Label the beaker “A + B”, pour solution A into solution B, and then pour the mixture into the labeled beaker
  4. Label the beaker “A + B”, pour solution A into the beaker, then add solution B and stir.

_____ 9. You are instructed to measure 15 mL from a stock flask, but accidentally pour 20 mL into your

graduated cylinder. Which of the following, if any, should you NOT do?

  1. Pour the excess back into the stock bottle, but keep the 15 mL you need
  2. Pour the excess down the drain, being careful to retain the 15 mL you need.
  3. Pour the excess into a waste beaker, if your teacher provides one.
  4. Give the excess to a classmate who still needs some
  5. All of these are acceptable.

_____10. When finished with your lab experiment

  1. Watch the other groups while they complete their labs
  2. Tell other groups the answers to lab questions
  3. Clean all equipment properly and return it to it’s proper location
  4. Leave materials in the sink for the teacher to clean and work in groups to complete the write-up

Part II:

For each safety problem in Column A, write the letter of the best prevention OR solution from Column B.

Safety ProblemSafety Precaution or Solution

_____1. An incorrect chemical is usedA. Dispose of wastes only as directed by your

teacher

_____2. A chemical splash sends material intoB. Read through the lab procedure before

a student’s eye beginning to work

_____ 3. Some chemical from equipmentC. Read labels on bottles twice before taking

or the lab table is ingested chemicals from them

_____ 4. Not sure of how to beginD. Wear safety goggles

_____ 5. Environmental pollutionE. Follow directions carefully; do not do any-

thing that you have not been told to do

_____6. An incorrect procedure causes anF. Clean station and ash hands thoroughly after

explosion handling materials