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Ocean Features

Total questions: 22

Worksheet time: 42mins

Name
Class
Date
1.

Valleys cut deep into the ocean floor

a)

Plankton

b)

Salinity

c)

Surface Current

d)

Ocean Trench

2.

Flat, deep, and smooth part of the ocean floor. Cold temperatures are found here.

a)

Continental Shelf

b)

Abyssal Plain

c)

Continental Slope

d)

Seamounts

3.

Warm water surface current located on the coast (Gulf of Mexico)

a)

Gulf Stream

b)

Ecosystem

c)

Organism

d)

Density

4.

Warm water that moves from the equator to the cold polar regions Example: Gulf Stream & North Atlantic Drift

a)

Jet Stream

b)

Surface Current

c)

Gulf Stream

d)

Under Water Currents

5.

Underwater Volcanoes and Mountains?

a)

Seamounts or Mid- Ocean Ridge

b)

Mountain Ridge

c)

Coastal Plains

d)

Abyssal Plains

6.

gently sloping shelf of land extending from the shoreline to the continental edge

a)

Continental Slope

b)

Continental Shelf

c)

Continental Rise

d)

Abyssal Plain

7.

the constant movement of ocean water that is caused by the patterns of wind and water density

a)

Ocean Current

b)

Continental Drift

c)

Land Before Time

d)

Zooplankton

8.
What do you call an underwater mountain?
a)
trench
b)
abyssal plain
c)
seamount
d)
volcanic island
9.
the deepest part of the ocean
a)
trenches
b)
abyssal plain
c)
ocean basin
d)
rift
10.

sound waves used to make a map of the ocean floor

a)

ocean floor topography

b)

sonar

c)

seamount

d)

continental slope

11.

an underwater mountain chain where new ocean floor is formed

a)

mid-ocean ridge

b)

seamount

c)

guyot

d)

abyssal plain

12.

How many major oceans are there in the world?

a)

7

b)

6

c)

5

d)

4

13.
Massive pieces of land that are part of the Earth's crust and upper mantle
a)
Tectonic plates
b)
Trenches
c)
Divergent boundary
d)
Continental shelves
14.
The deepest part of the ocean; long, narrow ditches
a)
Tectonic plates
b)
Trenches
c)
Divergent boundary
d)
Continental shelves
15.
The OLDEST seafloor is located? 
a)
Closest to the mid-ocean ridge
b)
Farthest from the mid-ocean ridge
16.
True or False : Sea-floor Spreading adds new material to the ocean floor?
a)
True
b)
False
17.
In the Atlantic ocean, where is the youngest seafloor located?
a)
Towards the edges, near the eastern and western continents
b)
Towards the middle of the ocean
c)
Towards the north and south poles
d)
Young seafloor is located randomly throughout the ocean
18.
How do scientists figure out the age of the seafloor?
a)
They research it from ancient sea maps that trading vessels would use in the 1700s
b)
They use the moon phases and eclipses to calculate the age
c)
They use seismographs and the depth as well as location of earthquakes to calculate the age
d)
They take drill ships to many locations in the oceans and collect, then date, rock samples. 
19.
True or False: The Pacific Ocean is shrinking
a)
True
b)
False
20.
True or False: The continents on the eastern (the Americas) and western (Europe, Africa) side of the Atlantic Ocean are moving closer together. 
a)
True
b)
False
21.

According to Wegener's hypothesis of continental drift,

a)

Earth is slowly cooling and shrinking

b)

the continents were once joined together in a single supercontinent

c)

the continents DO NOT move

d)

Earth's surface is made up of seven major landmasses

22.

In Seafloor Spreading, molten material rises from the mantle and erupts or flows out

a)

along the edges of all the continents

b)

in the deep ocean trenches

c)

along mid-ocean ridges

d)

in the north and south poles