1. What two factors increase the density of water in the oceans and

• The following presentation was used
to review for the test.
topics. . .
Ocean currents
Conveyor Belt
El Nino
What to study . . .
Notebook entries
Lab: Density
Ice-water Lab
Lab: Briny Deep
Notes Handout: Ocean Currents
Map Activity: El Nino
What is happening near Greenland
that keeps the conveyor belt going?
Water is sinking
The actual test questions might be . . .
Why does some of the warm water of the
Gulf Stream flow toward Greenland?
a. Water is upwelling in areas near Greenland.
b. The Coriolis Effect causes the Gulf Stream to do
c. There are areas where water is sinking near
d. There are nutrients near Greenland.
1. What is the volume of 80 cm3
of aluminum in mL?
2. What is the mass of 100 mL of fresh-water?
3. If mass is 100 g and volume is 50 cm3
what is the density?
4. When there is a strong El Nino
why is there more rain in Peru?
5. Which has more water molecules?
100 mL of cold water, or 100 mL of hot water?
6. How does rain at the equator affect
the salinity of the water there?
7. How often to we have a significant
El Nino?
8. Why is the algae spike here?
9. Why does Montana get less snow
during a strong El Nino?
10. How does oxygen get into the water
near the surface? (2)
11. What is the most important thing that
surface currents transport?
12. Why is cold water more dense than
warmer water?
13. List the three basic kinds of ocean currents?
14. What change in the atmosphere causes
an El Nino to get started?
15. What are the two kinds of excess
nutrients in the Mississippi River?
16. What are two things algae provide?
17. Why are the Dead Sea, the Red Sea, and
the Med. Sea so salty?
18. In the Briny Deep Lab, which type of
water was the least dense?
19. What do density currents transport?
20. What are the three factors that cause
surface currents?
21. What does upwelling bring up?
22. How does salt affect water? (2)
23. Why did the ice-water get colder as
the ice melted?
24. If the salinity is 30 ppt and you have
1000 grams of this water, how much salt
do you have (mass) and how much
water (mass) do you have?
25. Where is the heaviest water in the
oceans formed?
26. Put these in order from least salinity to
highest salinity.
Salt Lake, Med. Sea, Baltic, Dead Sea, Atlantic Ocean
27. Why is the salinity of the Arctic
28. What big advantage do the buoys have
over the satellites?
29. How does a strong El Nino impact
30. Why can’t most marine animals live in
The Dead Zone?
31. What is happening near Greenland
that keeps the conveyor belt going?
32. What is the fancy word for “algae”?
Honors Essay Questions
Dead Zone in Gulf of Mexico
Theory about Conveyor shutting down
Density lab
1-3 points extra credit
• Fill in answers on study guide
• Hand in SOC tomorrow (optional)
for the