Name: ______Pd.: ______Date: ______
Section I– Short Answer:Complete the following sentences using the word bank below.
1.The phrase “rivers within an ocean” refers to the ocean’s ______.
2.Two ocean currents that affect the coasts of North America are the ______and ______.
3.The currents below the ______flow in a ______direction.
4.The ______current, in the Southern Hemisphere, completely circles the cold continent of ______.
5.Currents affect the ______of neighboring land masses.
6.The ______is a cost South American coastal current.
7.The ______is a warm ocean current that affects England’s climate.
8.______cause currents to change directions.
9.______push surface water in different directions.
10.Currents in the ______are eastward flowing ‘rivers’.
Section II – Multiple Choice:Select the best answer to complete or answer the questions below.
11.Which type of current results from underwater landslides?
a.rip currentc.longshore current
b.turbidity currentd.tidal current
12.Which of the following best describes the water found in the deep currents of the Atlantic Ocean?
a.cold with high salinityc.warm with high salinity
b.cold with low salinityd.warm with low salinity
13.The currents in the northern Indian Ocean are governed by winds called:
a.monsoonsc.trade winds
b.tsunamisd.tombolos
14.Deep Atlantic currents are formed largely as a result of the:
a.erosion by surface winds.c.rotation of the Earth.
b.heating of surface water.d.sinking of denser water.
15.The deflection of the Earth’s winds and ocean currents is caused by the Earth’s rotation called ____.
a.Doldrumsc.Gulf Stream
b.Coriolis Effectd.Density current
Section III – Completion:Complete the table below using the choices listed for each column to identify the characteristics of the currents listed below. The table can be completed using the “Global Ocean Currents” map on page 532 of the McDougal-Littell textbook (blue and tan class set). Answer the questions below the table.
Answerchoices
Current / OceanBasin / Location of Basin / General Temperature / Flow direction relative to the Equator
Atlantic
Pacific
Indian / East
West / Warm
Cold / Toward
Away from
Gulf Stream
California
Canary
Peru
Brazil
Kurishio
W. Australia
E. Australia
Beneguela
Agulhas
16.What is the general relationship between a current’s temperature and the side of the ocean on which that current flows?
17.In what direction, clockwise or counterclockwise, do the major circulation patterns rotate in the Northern Hemisphere?
18.In what direction, clockwise or counterclockwise, do the major circulation patterns rotate in the Southern Hemisphere?
19.Why does each hemisphere have a different pattern?
20.An ocean fog will occur when moist air blowing from a warm ocean current meets warm air over a cold ocean current. Which Australian coast (N, S, E, or W) is most likely to experience such fogs?