1. Bellwork 2/8 In your own words,
describe what ocean acidification is and what is causing this change
Describe how humans are connected to this change in ocean water

2. Wednesday 2/8 Unit 1 Test Binder check About 50 points
Multiple choice & short essays
Binder check
In-class activities

3. Ocean Acidification: Homework question #2 Specific heat of water
Water temperature doesn’t change very quickly, so looking at seasons might not have been an effective approach.
Let’s look at the global ocean

4. What conclusion can we draw regarding water temperature and change in pH?

5. Concept Mapping:
create a concept map that includes all of the words in the table below
The words must be connected with an arrow and linking words
You may have more than one connection between words.
Your goal is to make as many accurate connections as possible.

6. Unit 1 Review:

7. The 5 oceans on our planet are _________
Pacific
Atlantic
Indian
Arctic
Southern

8. Which hemisphere has more ocean area than land area?
Southern Hemisphere

9. What tool/technique to scientists use to study the ocean floor?
Sonar

10. A deep flat feature that makes up the “floor” of the ocean is called _____________.
Abyssal Plain

11. The area of the ocean in which sunlight permeates is called the __________.
Photic zone

12. As depth increases, what happens to temperature & salinity?
Temperature decreases with depth
Salinity increases with depth

13. (Expressed in parts per thousand)
The term for the total amount of solid material dissolved in water is ______________.
Salinity
(Expressed in parts per thousand)

14. Two main sources of sea salts are __________.
Weathering of rocks
Volcanic eruptions

15. Two processes that decrease salinity (add water) are ________.
Melting of sea ice/icebergs
Runoff from land
Precipitation

16. Two processes that increase salinity (remove water) are ________.
Formation of sea ice
Evaporation

17. What would a graph of temperature vs. depth at a low latitude look like?

18. Variations in ocean water temperature with depth

19. What would a graph of density vs. depth at a low latitude look like?

20. Variations in ocean water density with depth

21. This type of current develops from friction between the wind and the ocean water.
Surface current

22. Circular moving current systems that dominate the ocean surface are called __________.
Gyres

23. How do ocean currents play a role in weather and climate?
Transfer heat from low latitudes to high latitudes (and vice versa)

24. Thermohaline currents
Deep ocean currents that form from differences in salinity and temperature are called _________.
Thermohaline currents

25. Sediment made up of shells and skeletons of once living organisms are called ___________
Biogenous Sediments

26. Lithogenous Sediments
Sediment that is made from the weathering of continental rocks is called ________.
Lithogenous Sediments

27. Change in sediment color Condition of shell/skeleton pieces
How can sediments tell us about climate/environmental changes in the past?
Change in sediment color
Oxygen isotopes
Condition of shell/skeleton pieces

28. What chemical is being absorbed by the ocean that is causing the water to decrease in pH?
Carbon Dioxide

29. Which type of ocean water can hold more CO2, colder or warmer water?
This means that the Arctic and Southern oceans tend accumulate CO2

30. Dissolves/Deteriorates
What happens to Calcium Carbonate shells as a solution becomes more acidic?
Dissolves/Deteriorates