1. Safety Review

2. 1. Working alone in the lab is fine as long as the teacher has been notified. A. True B. False

3. 2. If a chemical splashes into your eyes, how many minutes (minimum)should you rinse them? A. 10 minutes B. 20 minutes C. 30 minutes D. 40 minutes

4. 3. Which piece of glassware is the best choice to accurately measure a certain volume of liquid? A. Beaker B. Erlenmeyer Flask C. Graduated Cylinder D. Watch Glass

5. 4. How many times should you read a chemical label (minimum) before dispensing a substance? A. 1 B. 2 C. 3 D. 4

6. 5. Which piece of information is not necessarily found on a properly labeled solution? A. concentration B. name of solution C. expiration date D. hazards or warnings

7. 6. Food and drinks in the classroom are allowed as long as an experiment is not being conducted. A. True B. False

8. 7. All leftover chemicals should be A. returned to the proper reagent bottles B. disposed of in the trash can C. disposed of down the drain D. disposed of in the proper waste container.

9. 8. Burns from explosions are one of the most common lab accidents. A. True B. False

10. 9. Which is NOT a good characteristic of proper lab attire? A. fabrics B.long pants C. old clothes D. baggy sleeves

11. 10. Personal belongings should be kept at the lab table A. True B. False

12. 11. The best way to stop a spinning centrifuge is A. using your hand B. turning it off C. unplugging it D. using a scoopula

13. 12. Who can put out a small container fire? A. Students only B. Teachers only C. Anyone close by

14. 13. Which is the best way to extinguish a small container fire? A. use the fire blanket B. cover it with a watch glass C. use the fire extinguisher D. dump water on it

15. 14. It is safe to remove chemicals from the classroom as long as you return them. A. True B. False

16. 15. Wafting refers to the proper way to A. smell a chemical B. taste a chemical C. touch a chemical D. view a chemical

17. 16. Where should you stand when lighting a Bunsen Burner? A. As close as possible to ensure that it lights B. About an arms length away C. Behind your lab partner.

18. 17. Which is the best method to use in the event of a clothing fire? A. safety blanket B. stop, drop and roll C. safety shower D. fire extinguisher

19. 18. Which substance in thermometers produces toxic vapors when exposed to air? A. alcohol B. petroleum C. mercury D. water