Name ______Date ______Period ______

LAB SAFETY WORKSHEET

MULTIPLE CHOICE. Circle the best answer(s).

1. If you spill an acid or a base on yourself, you should:

  1. rinse with a neutralizing solution
  2. ask your teacher what to do
  3. immediately wash with soap and cool water and tell your teacher
  4. do nothing unless you feel a burn or irritation

2. You may remove your goggles while in the lab room:

  1. never
  2. if no one is doing an experiment or washing glassware
  3. if you are wearing glasses or contacts
  4. anytime

3. You can safely wear contact lenses while doing a chemistry lab:

  1. if you are wearing goggles
  2. if they are soft lenses
  3. never
  4. if you are heating a substance but not using chemicals

4. Broken glassware left around the lab is a hazard because:

  1. if on the floor, someone might step on it and cut their foot
  2. if on the lab bench, someone might lean on the bench and cut their arm
  3. if in the sink, someone might try to pick it up to throw it away properly and cut themselves
  4. all of the above

5. You have looked up the hazards of the chemicals you will be using in a particular lab, and found out that they are mild health hazards, requiring you to avoid skin contact and vapor inhalation. Therefore, when in lab you should:

  1. wear short shorts and sandals
  2. wear long pants, closed toed shoes, and a lab apron
  3. wear gloves
  4. b and c
  5. a and c

6) What type of eye cover is acceptable to wear during chemistry labs?

  1. Your glasses will suffice if you already wear glasses.
  2. Glasses that have wrap-around side coverage
  3. Approved safety goggles only

7. If your clothing or your neighbor's clothing catches fire, what should you do?

  1. drop to the floor and roll to extinguish the fire
  2. run
  3. spray the fire with a fire extinguisher
  4. throw water on the burning clothes

8. If something on your lab benches catches fire, what is the best response from the choices below?

  1. always run for the fire extinguisher if you see a flame
  2. if and only if it is possible to do so safely, cover the flames with a beaker or watchglass, remove solvents from the area, then get the fire extinguisher; if it is not possible to do this, leave the room and pull the fire alarm, and call 911 from a safe phone
  3. get the safety wash and aim the water at the flames
  4. the moment you see a hint of the flame, immediately leave the room and pull the fire alarm

9. If the fire alarm sounds, you should:

  1. do nothing - it is probably a false alarm
  2. shut down your experiment, get your stuff, then leave the building
  3. leave the building immediately following fire alarm protocols
  4. grab a fire extinguisher and/or safety wash

10. What should you do with your waste chemicals from your lab when you are done performing the experiment?

  1. Pour it down the drain.
  2. Leave it in the container you have it in.
  3. Deposit in appropriate waste beakers in front of room, unless your teacher tells you it is OK to pour the contents down the drain.

11. You get a chemical in your eye. What should you do?

  1. nothing
  2. rinse with water for a few minutes and tell your teacher
  3. immediately flush with water, continue washing for 15 minutes and tell your teacher
  4. go to the restroom and rinse with water because the water is better there

TRUE – FALSE. Circle the correct answer for each statement.

TrueFalse12. All accidents and/or injuries in the science lab should be handled by the students themselves.

TrueFalse13. The correct way to combine acid & water is to add acid to the water.

TueFalse14. Any time chemicals, heat, or glassware are used, students need to wear lab goggles.

TrueFalse15. Long hair (not tied back), dangling jewelry, and loose clothing are cool in science labs.

TrueFalse16. It is ok to point the open end of a test tube being heated at yourself or someone else.

True False17. When removing an electrical plug from a socket, pull on the electrical cord.

TrueFalse18. When dissecting, be sure to hold the specimen securely and cut away from yourself.

TrueFalse19. The correct procedure for smelling a chemical is to point the face of the container away from your face (and others' faces), while gently fanning the vapors towards your nose.

TrueFalse20. When you complete your experiment, it is alright to do your own experiment as long as you clean up afterwards.

Describe the procedures that you should follow in each of the situations given below.

21. Your shirt catches fire while leaning over a Bunsen burner.

22. A drop of a chemical solution splashes into your eye.

23. You cut your palm on a small piece of broken glass that is lying on the lab bench.

24. Your lab partner notices a tiny crack in a beaker that you are heating over a Bunsen burner.

Answer the following.

25. When should safety glasses or goggles be worn in the lab?

26. In the lab, what should be done with hair that is longer than shoulder length?

27. What kind of wastes should be put into the broken glass container?

28. Describe how you would test the odor of any chemical in the lab?

29. What kinds of injuries should be reported to you teacher?

30. Where do you dispose of waste material form the lab?

31. List as many PROPER and IMPROPER lab procedures as you can in this picture.

PROPER Lab Procedures / IMPROPER Lab Procedures

Safety & Equipment

Across

7. These rectangular pieces of glass are used with microscopes

8. The first thing that should be done whenever there is an accident in the laboratory

11. You should only heat glassware that has one of these two labels stamped on it

12. This is always added to water and not the other way around

13. This instrument is used to hold a test tube at an angle while heating it in a flame

16. This should be read before using any chemical

17. What you should do if your clothes catch on fire

18. What you should always do when you are unsure about something in the lab

19. How should a microscope is carried

20. Do not use glassware if this occurs

21. Glassware that should be used to measure exact volumes of liquids

23. Should be worn to protect the eyes in lab

24. Used to hold chemicals you are heating and should always be slanted away from people

Down

1. Used to produce an enlarged image of a cell

2. This should be pushed up or removed to prevent an accident in the class

3. Instrument with a sharp blade used for cutting when you dissect

4. After handling chemicals or microorganisms you should keep your hands away from these two places

5. This should be done every time you finish using chemicals or bacteria in the lab

6. This should not be handled directly after being over a Bunsen burner

9. This should only be used on large fires pointed at their base and never on a person

10. Used to detect the odor of a chemical

14. These should be used to hold dissecting specimens instead of our hands

15. This is the last thing you do when you have finished a lab and before you leave class

22. What should be done with long hair in the laboratory

Get the Picture?

View the picture and answer the questions concerning lab safety.

Questions:

1. List 3 unsafe activities shown in the illustration and explain why each is unsafe.

2. List 3 correct procedures depicted in the illustration.

3. What should Bob do after the accident?

4. What should Sue have done to avoid an accident?

5. Compare Luke and Duke's lab techniques. Who is following the rules?

6. What are three things shown in the lab that should not be there?

7. Compare Joe and Carl's lab techniques. Who is doing it the correct way?

8. What will happen to Ray and Tim when the teacher catches them?

9. List three items in the illustration that are there for the safety of the students in the lab.

10. What is Betty doing wrong?

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