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WorksheetsCh 23, Sec 1 & 2
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
A large body of saline water that may be surrounded by land is a(n)
a)
submersible
b)
ocean
c)
global ocean
d)
sea
2.
Modern oceanography began with the
a)
JOIDES Resolution
b)
CHIKYU
c)
HMS Challenger
d)
the use of sonar
3.
Sonar is used to
a)
measure ocean temperature
b)
calculate the depth of the sea floor
c)
photograph ocean organisms
d)
obtain sea floor samples
4.
What would a scientist use to see the bottom of the ocean for himself while remaining connected to a research ship?
a)
an ROV
b)
a bathysphere
c)
sonar
d)
a bathyscaph
5.
________________ are the flattest regions on the Earth.
a)
trenches
b)
seamounts
c)
submarine canyons
d)
abyssal plains
6.
The deepest place in Earth's crust is a(n)
a)
abyssal plain
b)
trench
c)
mid ocean ridge
d)
rift
7.
An atoll will likely someday become a(n)
a)
trench
b)
rift
c)
mid ocean ridge
d)
guyot
8.
_____________ would be useful to explore shallow water near the shore.
a)
SCUBA
b)
ROV
c)
A bathyscaph
d)
A bathysphere
9.
The deepest and largest ocean on the Earth is the
a)
Atlantic
b)
Pacific
c)
Indian
d)
Arctic
10.
The first step in using sonar is to
a)
measure the timing of sound waves
b)
make maps of the sea floor
c)
send out a series of sound waves
d)
bounce sound waves off of the floor of the sea
11.
The continental shelf, slope, and rise are all part of the
a)
deep ocean basin
b)
continental margin
c)
mid ocean ridge
d)
trench
12.
The Mariana Trench is the ___________ place on the Earth.
a)
longest
b)
highest
c)
deepest
d)
widest
13.
The mid ocean ridges in Iceland are unusual because they
a)
are divergent plates
b)
rise above sea level
c)
are seamounts
d)
are abyssal plains
14.
The third largest ocean is the
a)
Atlantic Ocean
b)
Southern Ocean
c)
Arctic Ocean
d)
Indian Ocean
15.
The ____________ Ocean contains more than one half of the Earth's ocean water.
a)
Arctic
b)
Southern
c)
Indian
d)
Pacific
16.
The _____________ extends from Antarctica to the 60⁰S latitude.
a)
Arctic Ocean
b)
Pacific Ocean
c)
Atlantic Ocean
d)
Southern Ocean
17.
The continental ______________ is the part of the continent covered by water.
a)
slope
b)
shelf
c)
rise
d)
margin
18.
A deep valley within the continental margin is a(n) _________________.
a)
trench
b)
submarine canyon
c)
rift
d)
ridge
19.
The body of water that covers nearly three fourths of the Earth's surface is the ______________.
a)
global ocean
b)
gulf
c)
sea
d)
bay
20.
The _____________ Ocean is the smallest ocean.
a)
Pacific
b)
Southern
c)
Arctic
d)
Indian
21.
The deepest and largest ocean on the Earth is the
a)
Atlantic
b)
Pacific
c)
Indian
d)
Arctic
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