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Oceans and Currents

Total questions: 20

Worksheet time: 5hrs 0mins

Name
Class
Date
1.

These are ocean currents that are powered by wind: ________________________

a)

Deep water currents

b)

Density currents

c)

Surface currents

d)

Upwellings

2.

Generally, currents running along the West coasts of continents are ___________ currents.

a)

cold

b)

warm

c)

density

3.

At a/an ______________ deep, cold water rises to the ocean surface and brings nutrients up from the bottom of the ocean.

a)

upwelling

b)

abyssal plain

c)

sea mount

d)

estuary

4.

The rise and fall of sea level due to the moon’s gravity is called a _________.

a)

gyre

b)

current

c)

tide

d)

wave

5.

A measure of the amount of salts dissolved in sea water: ____________________

a)

density

b)

saturation

c)

salinity

d)

pressure

6.

Which part of the ocean floor is technically part of a continent?

a)

Abyssal plain

b)

Ocean trench

c)

Seamount

d)

Continental shelf

7.

Which layer of ocean water is the top-most layer; the layer of ocean water that ranges 0 m to 200 m deep?

a)

Epipelagic (Sunlight Zone)

b)

Mesopelagic (Twilight Zone)

c)

Bathypelagic (Midnight Zone)

d)

Abyssopleagic (Abyssal Zone)

8.

Which layer of ocean water can be found at depths of 1000 m to 4000 m?

a)

Epipelagic (Sunlight Zone)

b)

Mesopelagic (Twilight Zone)

c)

Bathypelagic (Midnight Zone)

d)

Abyssopelagic (Abyssal Zone

9.

Which area of the ocean floor covers about 50% of the Earth’s surface?

a)

Continental shelf

b)

Ocean trench

c)

Seamount

d)

Abyssal plain

10.

In which layer would you be most likely to find a photosynthetic organism?

a)

Epipelagic (Sunlight Zone)

b)

Mesopelagic (Twilight Zone)

c)

Bathypelagic (Midnight Zone)

d)

Abyssopelagic (Abysal Zone)

11.

Which area(s) of the ocean floor are the deepest, and the result of a subducting tectonic plate?

a)

Continental shelf

b)

Continental slope

c)

Abyssal plains

d)

Trenches

12.

The difference between ocean level at high tide and ocean level at low tide is called _____________________.

a)

Neep tide

b)

Tidal range

c)

Tidal surge

d)

Spring tide

13.

This forms when a mass of sea water becomes more dense than the surrounding water: _________________________________________

a)

Tidal surge

b)

Tidal range

c)

Density current

d)

Upwelling

14.

Where can you find the least dense ocean water?

a)

Epipelagic (Sunlight Zone)

b)

Mesopelagic (Twilight Zone)

c)

Bathypelagic (Midnight Zone)

d)

Abyssopelagic (Abyssal Zone)

15.

Where does the Oceanic, or Open Ocean, part of the ocean begin?

a)

Above the continental shelf.

b)

At the edge of the abyssal plain.

c)

Above the top edge of the continental slope.

d)

At the shoreline.

16.

What word would be most appropriate to enter into the spot at the space labeled #2 on the paper ocean diagram in front of you?

a)

Oceanic

b)

Continental slope

c)

Neritic

d)

Continental shelf

17.

What word would be most appropriate to enter into the spot at the space labeled #7 on the paper ocean diagram in front of you?

a)

Oceanic

b)

Continental slope

c)

Continental shelf

d)

Abyssal plain

18.

What word would be most appropriate to enter into the spot at the space labeled #8 on the paper ocean diagram in front of you?

a)

Epipelagic

b)

Continental slope

c)

Mesopelagic

d)

Abyssal zone

19.

What word would be most appropriate to enter into the spot at the space labeled #3 on the paper ocean diagram in front of you?

a)

Continental shelf

b)

Continental slope

c)

Epipelagic

d)

Abyssal zone

20.

What word would be most appropriate to enter into the spot at the space labeled #5 on the paper ocean diagram in front of you?

a)

Abyssal plain

b)

Continental Slope

c)

Continental shelf

d)

Mesopelagic