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WorksheetsSeafloor
Total questions: 14
Worksheet time: 7mins
Name
Class
Date
1.
New seafloor is created here
a)
Deep ocean trench
b)
subduction zone
c)
mid-ocean ridge
d)
marine canyon
2.
Deepest spot in the ocean
a)
Monterey Canyon
b)
Mariana Trench
c)
Puerto Rico Trench
d)
Mid-Atlantic Ridge
3.
Large mountain ridges under the ocean that are formed when molten material from deep within the Earth flow up to the surface.
a)
Deep ocean trench
b)
abyssal plain
c)
guyot
d)
mid-ocean ridge
4.
Guyot
a)
flat topped seamount
b)
volcanic island
c)
submarine canyon
d)
deep trench
5.
seamount
a)
underwater atoll
b)
underwater volcano
c)
underwater island
d)
underwater hot spring
6.
Abyssal plain
a)
long mountain range
b)
deep cut in the ocean floor
c)
large flat area deep on the ocean floor
d)
eroded island
7.
What feature is marked by letter A?
a)
Continental slope
b)
Continental shelf
c)
Continental rise
d)
continent
8.
What seafloor feature is marked with the letter G?
a)
Mid-ocean ridge
b)
submarine canyon
c)
abyssal plain
d)
deep ocean trench
9.
What seafloor feature is marked with the letter D?
a)
Deep ocean trench
b)
Submarine Canyon
c)
Mid-ocean Ridge
d)
None of the above
10.
The water at some areas along the mid-ocean ridges are very hot because ...
a)
earth's magnetic field creates heat
b)
The areas are closer to the core
c)
There is more sunshine
d)
There are hydrothermal vents along the mid-ocean ridges
11.
What does this diagram show?
a)
Subduction
b)
Tsunami
c)
Volcanic island arc
d)
Seafloor spreading
12.
What are hydrothermal vents?
a)
Underwater volcanoes
b)
The deepest spot in the ocean
c)
Water below the seafloor is heated by magma and gushes out of openings in the seafloor
d)
Underwater landslides
13.
Continental shelf
a)
Leftover from Pangaea
b)
Part of the continent that is covered by shallow ocean.
c)
Giant landslides
d)
Huge underwater canyons
14.
Continental slope
a)
Mountains near the coast
b)
Underwater mountains
c)
A continent that is covered by an ocean
d)
Edge of a continental shelf that plunges steeply down to great depth
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