2-1a

**__Time Length__**
 * Lab Safety Video Worksheet ** <---Unit Header - Next Assignment--->media type="custom" key="6581673"
 * 1 Day

//Make a new page on your wiki titled "2-1 Lab Safety Worksheet." Copy the questions to your wiki and answer them there.//
 * __Instructions__ **

** __Video__ ** If a bar pops up on this screen click it and then run the add-on. Double click the video when playing to make it full screen or hit Control and Plus at the same time till it is the size you want. Press and hold the forward button to fast forward.
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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? 3. Is it important to be exact when preparing a chemical reaction? Explain. 4. What should you do with leftover chemicals after an experiment? What should you do with the products of an experiment? 5. How can you draw small volumes of liquids into a pipette safely? 6. Why is it important to read instructions all the way through before beginning an experiment? 7. When you need to carry chemicals from one place to another in the lab, what size container is the safest to use? 8. If you spill a liquid chemical, what should you do? 9. Should you add acid to water, or water to acid?
 * __Handling Chemicals Safely__ **

10. Before hooking a Bunsen burner to the gas line, what should you look for? 11. How quickly should you turn on the gas? 12. When you use a striker, where should you stand? 13. If your flame sputters or goes out, what should you do? 14. If you smell gas in the room, what should you do? 15. Is it safe to heat a sealed container? Explain <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">16. Is it safe to work near heated objects? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">17. Is it safe to use glassware that has cracks or stars ? Explain. <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">18. How can you safely carry a heated object? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">19. Is it safe to heat flammable chemicals (e.g., gasoline) with a Bunsen burner?
 * __Bunsen Burner and Glassware Safety__ **

<span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">20. Thermometers contain either alcohol or mercury to indicate temperature. Which substance (mercury or alcohol) creates toxic vapors when exposed to air? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">21. If you break a mercury thermometer, what is the safe way to clean it up? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">22. Before choosing a thermometer for a specific job, what should you know?
 * __Thermometer Safety__ **

__** Glass Tubing Safety **__ <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">23. What is one of the most common causes of injury in the laboratory? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">24. Describe how to use an inserter. <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">25. If you do not have an inserter, how should you insert glass tubing into a rubber stopper? How can you protect your hands? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">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: 10pt;">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: 10pt;">28. If the centrifuge starts to vibrate or move across the countertop, what should you do? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">29. How should you stop a spinning centrifuge?

__** Dressing for Safety **__ <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">30. What types of shoes are appropriate for the lab? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">31. Describe the type of clothing you should wear on days when you will be working in the lab? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">32. How should you protect your eyes from chemicals and class shards? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">33. What is it important to remove rings, watches, and contact lenses before working in the lab? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">34. How can you protect your hands when working with corrosive chemicals?

__** Behavior in the Laboratory **__ <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">35. Is the Laboratory a safe place to eat, drink, or put on makeup? Why or why not? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">36. What is a safe way to read a burette that is above your eye level? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">37. Where should you keep personal belongings that you bring to the lab?

__** Emergency Equipment **__ <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">38. Name the pieces of safety equipment in your laboratory. Do you know where they are and how to use them? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">39. How do you extinguish a small fire in a container? What should you do if you have a larger fire? <span style="font-family: 'Berlin Sans FB',sans-serif; font-size: 10pt;">40. How do you put out a clothing fire?