2-1+Lab+Saftey+Worksheet

Lab Safety Video Workshee

Handling Chemicals Safely 1. When you read the label on a chemical container, what are the three most important pieces of information? Concentration and hazard warning 2. How many times should you read this information before you open the container? Twice or more 3. Is it important to be exact when preparing a chemical reaction? Explain. It is very important because it could be hazardous to you and others around you. 4. What should you do with leftover chemicals after an experiment? What should you do with the products of an experiment? Despose of everything as the teacher says 5. How can you draw small volumes of liquids into a pipette safely? Pipette filler 6. Why is it important to read instructions all the way through before beginning an experiment? To be sure you are doing i correctly and for saftey reasons 7. When you need to carry chemicals from one place to another in the lab, what size container is the safest to use? A small container 8. If you spill a liquid chemical, what should you do? Report it imediatly, stay away from it, and let the teacher clean it up. 9. Should you add acid to water, or water to acid? add acid to water

Bunsen Burner and Glassware Safety 10. Before hooking a Bunsen burner to the gas line, what should you look for? Check the gas line for cracks. 11. How quickly should you turn on the gas? Slowly 12. When you use a striker, where should you stand? Stand back from the burner. 13. If your flame sputters or goes out, what should you do? Turn the gas off right away. 14. If you smell gas in the room, what should you do? Turn the gas off. 15. Is it safe to heat a sealed container? Explain No because gas needs to exscape and if i doesnt it can explode 16. Is it safe to work near heated objects? Only if u have the right saftey stuff. 17. Is it safe to use glassware that has cracks or stars ? Explain. No it is never safe because it could explode. 18. How can you safely carry a heated object? In beaker clamps or hot mits 19. Is it safe to heat flammable chemicals (e.g., gasoline) with a Bunsen burner? No, never.

Thermometer Safety 20. Thermometers contain either alcohol or mercury to indicate temperature. Which substance (mercury or alcohol) creates toxic vapors when exposed to air? Mercury 21. If you break a mercury thermometer, what is the safe way to clean it up? Let the teacher clean it up. 22. Before choosing a thermometer for a specific job, what should you know? the range it is suited for.

Glass Tubing Safety 23. What is one of the most common causes of injury in the laboratory? Cuts from broken glass. 24. Describe how to use an inserter. Lubricate the inserter and slide in the tubing 25. If you do not have an inserter, how should you insert glass tubing into a rubber stopper? How can you protect your hands? Lubricate the tubing and use leather gloves. 26. What is the safe way to insert a thermometer into a stopper? Use an inserter

Centrifuge Safety 27. If you have just one sample that needs to be centrifuged, what must you do before turning the centrifuge on? Describe. Put another test tube on the opposite side to balance it. 28. If the centrifuge starts to vibrate or move across the countertop, what should you do? Stop the centrifuge and balance it out. 29. How should you stop a spinning centrifuge? Turn it off and wait for i to stop on its own

Dressing for Safety 30. What types of shoes are appropriate for the lab? Closed leather shoes 31. Describe the type of clothing you should wear on days when you will be working in the lab? Older clothes 32. How should you protect your eyes from chemicals and class shards? Wearing goggles. 33. What is it important to remove rings, watches, and contact lenses before working in the lab? Can trap chemicals and can be ruined 34. How can you protect your hands when working with corrosive chemicals? Gloves

Behavior in the Laboratory 35. Is the Laboratory a safe place to eat, drink, or put on makeup? Why or why not? No, of course not. Makeup can trap chemicals and food and drinks can be contaminated 36. What is a safe way to read a burette that is above your eye level? Lower it down or stand opoopn a step stool 37. Where should you keep personal belongings that you bring to the lab? Out of the isle in a safe place.

Emergency Equipment 38. Name the pieces of safety equipment in your laboratory. Do you know where they are and how to use them? Eye wash fountain, goggles, lab sink, a chemical/saftey shower, and fire extinguisher. 39. How do you extinguish a small fire in a container? What should you do if you have a larger fire? Put a towel over it or something. If its too large leave the room and call the fire department 40. How do you put out a clothing fire? In the chemical/saftey shower, with a fire blanket, or stop, drop, and roll 41. How do you [|buy youtube views]?