21-+Lab+Safety+Worksheet

1. When you read the label on a chemical container, what are the three most important pieces of information? - 2. How many times should you read this information before you open the container? - twice 3. Is it important to be exact when preparing a chemical reaction? Explain. - yes 4. What should you do with leftover chemicals after an experiment? What should you do with the products of an experiment? - dispose of it the way your teacher tells you 5. How can you draw small volumes of liquids into a pipette safely? - with that tube sucky thingy 6. Why is it important to read instructions all the way through before beginning an experiment? - so you know what to do 7. When you need to carry chemicals from one place to another in the lab, what size container is the safest to use? - small 8. If you spill a liquid chemical, what should you do? - tell the teacher 9. Should you add acid to water, or water to acid? - acid to water
 * __Handling Chemicals Safely__ **

10. Before hooking a Bunsen burner to the gas line, what should you look for?for cracks 11. How quickly should you turn on the gas? - slowly 12. When you use a striker, where should you stand? - away from you 13. If your flame sputters or goes out, what should you do? - turn it off 14. If you smell gas in the room, what should you do? - turn it off and tell the teacher 15. Is it safe to heat a sealed container? Explain - no it can blow up 16. Is it safe to work near heated objects? - no <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">17. Is it safe to use glassware that has cracks or stars ? Explain. - no it can explode <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">18. How can you safely carry a heated object? - with tongues or gloves <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">19. Is it safe to heat flammable chemicals (e.g., gasoline) with a Bunsen burner? - no <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">20. Thermometers contain either alcohol or mercury to indicate temperature. Which substance (mercury or alcohol) creates toxic vapors when exposed to air? - mercury <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">21. If you break a mercury thermometer, what is the safe way to clean it up? - cleaned up and disposed properly <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">22. Before choosing a thermometer for a specific job, what should you know? -
 * __Bunsen Burner and Glassware Safety__ **
 * __Thermometer Safety__ **

__** Glass Tubing Safety **__ <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">23. What is one of the most common causes of injury in the laboratory? - cuts <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">24. Describe how to use an inserter. - lube it up <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">25. If you do not have an inserter, how should you insert glass tubing into a rubber stopper? How can you protect your hands? - using gloves and doing it slow <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">26. What is the safe way to insert a thermometer into a stopper? -

__** Centrifuge Safety **__ <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">27. If you have just one sample that needs to be centrifuged, what must you do before turning the centrifuge on? Describe - __**﻿**__<span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">28. If the centrifuge starts to vibrate or move across the countertop, what should you do?- place equal blance tube on the opposite side <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">29. How should you stop a spinning centrifuge? let it stop __** Dressing for Safety **__ <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">30. What types of shoes are appropriate for the lab?-closed leather shoes <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">31. Describe the type of clothing you should wear on days when you will be working in the lab? - no dresses or loose clothing <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">32. How should you protect your eyes from chemicals and class shards? -googles <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">33. What is it important to remove rings, watches, and contact lenses before working in the lab? - chemicals dont get into them <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">34. How can you protect your hands when working with corrosive chemicals?- with gloves the teacher gives you

__** Behavior in the Laboratory **__ <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">35. Is the Laboratory a safe place to eat, drink, or put on makeup? Why or why not? - no because they can get contaminated <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">36. What is a safe way to read a burette that is above your eye level? - lower it or stand on a step stool <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">37. Where should you keep personal belongings that you bring to the lab? - in ur locker or backpack

__** Emergency Equipment **__ <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">38. Name the pieces of safety equipment in your laboratory. Do you know where they are and how to use them? - band aids, fire extingushers, and chemical shower and eye washer <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">39. How do you extinguish a small fire in a container? What should you do if you have a larger fire? - let the teacher do it <span style="font-family: "Berlin Sans FB",sans-serif; font-size: 13.33px;">40. How do you put out a clothing fire? - fire blanket