1. Welcome To
Big Board Facts

2. Today's
Topics
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3. Water
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4. Hydroshpere
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5. Watersheds
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6. Water Health
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7. Human Effects
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8. Big Board Facts
Water 5 10 15 20 25
Hydro-sphere 5 10 15 20 25
Water-sheds 5 10 15 20 25
Water Health 5 10 15 20 25
Human Effects 5 10 15 20 25
Team Scores
Team One
Team Three
Team Five
Big Points
Question
Team Two
Team Four
Team Six

9. Which form of water has the highest density?
Question for 5 Points
Which form of water has the highest density?
Ice, Warm, Cold water
Show Answer

10. (ice expands – is less dense)
Water
Answer for 5 Points
Cold Water
(ice expands – is less dense)
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11. Water Question for 10 Points
What term describes the tendency of a water molecule to stick to other water molecules?
Show Answer

12. Water Answer for 10 Points Cohesion
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13. Water Question for 15 Points
What do the charges on either end of the water molecule indicate about the molecule?
Show Answer

14. Water Answer for 15 Points Polar Molecule
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15. What percentage of the Earth’s water is contained in oceans?
Question for 20 Points
What percentage of the Earth’s water is contained in oceans?
Show Answer

16. Water Answer for 20 Points About 97%
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17. Water Question for 25 Points
Which property of water helps to produce cool ocean breezes near a shoreline on a hot day?
Show Answer

18. Water Answer for 25 Points Specific Heat
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19. Where is most of the fresh water on Earth located?
Hydrosphere
Question for 5 Points
Where is most of the fresh water on Earth located?
Show Answer

20. Polar Ice Caps and glaciers
Hydrosphere
Answer for 5 Points
Polar Ice Caps and glaciers
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21. What is the lake that stores water for human use called?
Hydrosphere
Question for 10 Points
What is the lake that stores water for human use called?
Show Answer

22. Hydrosphere Answer for 10 Points Reservoir
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23. Glaciers, ocean water, aquifers, rivers
Hydrosphere
Question for 15 Points
What are two sources of fresh water used by cities for drinking water?
Glaciers, ocean water, aquifers, rivers
Show Answer

24. Hydrosphere Answer for 15 Points Aquifers and rivers
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25. The ice sheet that covers Antarctica is a form of what?
Hydrosphere
Question for 20 Points
The ice sheet that covers Antarctica is a form of what?
Show Answer

26. Hydrosphere Answer for 20 Points Glacier
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27. What causes salinity rates to be higher in some seas or oceans?
Hydrosphere
Question for 25 Points
What causes salinity rates to be higher in some seas or oceans?
Show Answer

28. High evaporation rates and limited circulation
Hydrosphere
Answer for 25 Points
High evaporation rates and limited circulation
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29. What is the main function of a watershed?
Watersheds
Question for 5 Points
What is the main function of a watershed?
Show Answer

30. To move water from higher to lower elevations
Watersheds
Answer for 5 Points
To move water from higher to lower elevations
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31. Watersheds Question for 10 Points
Onslow County is located in what major river basin? (Think river in Wilmington)
Show Answer

32. Watersheds Answer for 10 Points White Oak River Basin
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33. What forms the boundaries of a watershed?
Watersheds
Question for 15 Points
What forms the boundaries of a watershed?
Show Answer

34. Hills or Mountains/Higher levels of elevation
Watersheds
Answer for 15 Points
Hills or Mountains/Higher levels of elevation
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35. What are the parts of a watershed?
Watersheds
Question for 20 Points
What are the parts of a watershed?
Show Answer

36. Rivers, headwaters/source, tributaries, mouth
Watersheds
Answer for 20 Points
Rivers, headwaters/source, tributaries, mouth
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37. What is brackish water and where would you find it?
Watersheds
Question for 25 Points
What is brackish water and where would you find it?
Show Answer

38. Watersheds Answer for 25 Points
Salt water and fresh water mixed – along the mouths of rivers and in estuaries
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39. Which of the following are indicators of a healthy water system?
Water Health
Question for 5 Points
Which of the following are indicators of a healthy water system?
High nitrates, High dissolved oxygen, Neutral pH, Low temperatures, High turbidity, Low pH
Show Answer

40. High dissolved oxygen, Low temperatures, Neutral pH
Water Health
Answer for 5 points
High dissolved oxygen, Low temperatures, Neutral pH
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41. High nitrates, low turbidity, high temperatures, algal bloom
Water Health
Question for 10 Points
What is the most likely cause of low dissolved oxygen concentrations seen in July?
High nitrates, low turbidity, high temperatures, algal bloom
Show Answer

42. Water Health Answer for 10 Points High Temperatures
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43. What does it mean when a scientist says a lake has a high turbidity?
Water Health
Question for 15 Points
What does it mean when a scientist says a lake has a high turbidity?
Show Answer

44. The water has a lot of particles in it
Water Health
Answer for 15 Points
The water has a lot of particles in it
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45. Which of the following can cause high turbidity in a water system?
Water Health
Question for 20 Points
Which of the following can cause high turbidity in a water system?
High nitrates; low temps; high DO levels; low pH
Show Answer

46. Water Health Answer for 20 Points High Nitrate levels
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47. Water Health Question for 25 Points
Why can high water temperatures reduce water quality for fish and other organisms?
Show Answer

48. High temperatures can lower dissolved oxygen levels.
Water Health
Answer for 25 Points
High temperatures can lower dissolved oxygen levels.
Back to Board

49. Healthier fish, increased water temperature, fish kills, less algae
Human Effects
Question for 5 Points
Which of the following is a possible effect of high nutrient levels in water systems?
Healthier fish, increased water temperature, fish kills, less algae
Show Answer

50. Human Effects Answer for 5 Points Fish Kills
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51. Human Effects
Question for 10 Points
Which of the pollutants below is an example of non-point source pollution?
Wastewater from a leaking pipe, chemical run-off from lawns, oil from a leaking underground tank, chemicals released from a paper mill
Show Answer

52. Chemical run-off from lawns
Human Effects
Answer for 10 Points
Chemical run-off from lawns
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53. Human Effects Question for 15 Points
What is the difference between point-source and non-point-source pollution?
Show Answer

54. Human Effects Answer for 15 Points
Point-source pollution comes from one site; non-point-source pollution comes from many sites.
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55. Which of the following is a clear example of point-source pollution?
Human Effects
Question for 20 Points
Which of the following is a clear example of point-source pollution?
Trash floating in ocean water; feedlot wastes in a river; oil spill from a supertanker; salts from irrigation
Show Answer

56. Oil spill from a supertanker
Human Effects
Answer for 20 Points
Oil spill from a supertanker
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57. Human Effects
Question for 25 Points
Water passes through a screen or filter that separates out large solid material is the first step to what process?
Show Answer

58. Wastewater treatment process
Human Effects
Answer for 25 Points
Wastewater treatment process
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59. The "Big Points"
Question
Show Question

60. What is the difference between adhesion and cohesion?25 10 9 11 12 14 13 8 7 3 2 4 5 15 6 1 17 26 24 27 28 30 29 16 23 18 22 19 20 21
“Big Points”
Question
What is the difference between adhesion and cohesion?
Show Answer

61. Adhesion is the force that pulls water molecules to other molecules
Big Points
Answer for Big Points
Adhesion is the force that pulls water molecules to other molecules
Cohesion is the force that attracts water molecules to other water molecules
To End

62. University of North Carolina at Wilmington All rights reserved.
Authored by
Jeff Ertzberger
University of North Carolina at Wilmington All rights reserved.
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