1. UNITSTOOLSSTATIONS LAKE MERRITT TRASH and MISCELLANEOUS 100 200 300 400 500

2. What are the units of temperature? ANSWER

3. What are the units of dissolved oxygen (D.O.)? ANSWER

4. What are the units of salinity? ANSWER

5. What are the units of pH? ANSWER

6. What are the units of Secchi depth? ANSWER

7. What measures water clarity? ANSWER

8. What measures salinity? ANSWER

9. What measures dissolved oxygen? ANSWER

10. What measures pH? ANSWER

11. What measures temperature? ANSWER

12. Which station is near the tide inlet from San Francisco Bay? ANSWER

13. Which station is in the middle of the lake? Answer

14. Which station is near the bird islands? Answer

15. Which station is near Fairyland and marks the inlet from Glen Echo Creek? Answer

16. Which station is at the shore near the lake classroom? Answer

17. Degrees Celsius

18. Parts per thousand, ppt

19. No units.

20. Centimeters

21. The Secchi disk

22. The refractometer

23. Vacuum ampoules (tubes) and colorimetric test.

24. pH strip

25. Thermometer

26. Station 12 

27. Station 9 

28. Station 5 

29. Station 17 

30. Parts per million (ppm)

31. The dock 

32. What is an estuary? Answer

33. A place where fresh water and salt water mix.

34. What is a watershed? Answer

35. The area of land that drains into a body of water.

36. What is urban run-off? Answer

37. Trash and chemicals that wash off city streets.

38. Name 5 sources of water entering Lake Merritt. Answer

39. 1) Glen Echo Creek, 2) Trestle Glen Creek, 3) Storm drains (88!), 4) S.F. Bay, 5) rain.

40. Storm drains lead to… Answer

41. Natural waterways like Lake Merritt

42. What is a dead zone? Answer

43. An area of water where living things get killed by a lack of dissolved oxygen.

44. What level of dissolved oxygen is needed for aquatic life in Lake Merritt Answer

45. 5 ppm

46. List at least 3 things the plankton told Titus and Charles Ford. (100 bonus points for each additional thing!). Answer

47. You are too big. Why don’t you worship the sun? Why do you throw trash in the Lake? Why do you waste energy?

48. What is the difference between storm drain water and sewer water? ANSWER Answer

49. Storm drain water goes directly to Lake Merritt or other waterways. Sewer water goes to the water treatment plant before it is released into the Bay.

50. What two conditions at Lake Merritt have been cited by the E.P.A. as below acceptable levels?

51. Low dissolved oxygen and trash in the water.

52. Name 3 dangerous chemicals found in urban run-off. ANSWER

53. Copper from brake pads, motor oil, paint, fertilizers, insecticides.

54. What is the “Big Flush” and when does it occur?

55. The washing down of huge amounts of trash from the storm drains into the Lake. This occurs after the first big rainfall of the year, usually in November or December.

58. In 1870, Lake Merritt made environmental conservation history. What happened in that year?

59. Lake Merritt was declared the first National Wildlife Refuge.