Name:     ID: 
 
Email: 

Ocean Floor Features

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

What do we call the area that holds the ocean water?
a.
the mid-ocean ridge
c.
the submarine canyon
b.
the ocean basin
d.
the deep-sea trench
 

 2. 

If you could look at the deep ocean floor, which is the best description of what you would see?
a.
coral reefs with many varieties of life
c.
flat, silt-covered, lifeless regions
b.
high mountains and deep valleys
d.
ocean ridges with active volcanoes
 

 3. 

What is a guyot?
a.
a volcanic island
c.
a mountain under the sea
b.
the edge of the rift valley
d.
a flat topped sea mount flattened by the waves
 

 4. 

mc004-1.jpg
Use this picture for questions 4-8

What is usually the flattest place on Earth?
a.
a deep sea trench, letter K
c.
the abyssal plain, letter D
b.
continental sshelf, letter A
d.
the rift valley, letter J
 

 5. 

Use the picture above

What ocean floor feature is letter F?
a.
continental shelf
c.
an island
b.
continental slope
d.
a seamount
 

 6. 

Use the picture above

Which feature is the mid-ocean ridgee?
a.
A
c.
C
b.
B
d.
D
 

 7. 

Use the picture above

What feature is letter E?
a.
a guyot
c.
a seamount
b.
an island
d.
continental slope
 

 8. 

Use the picture above

Which letter is where the ocean is spreading apart?
a.
letter C, a submarine canyon
c.
letter F, the continental shelf
b.
letter, G, a deep sea trench
d.
letter D, the mid-ocean ridge, rift valley
 

 9. 

How have oceanographers been able to map the sea floor?
a.
by studying seismic waves
c.
by sending out scuba divers
b.
by using submarines
d.
by using echo sounding or Sonar
 

 10. 

What do we call the part of the continent that is under the water at the beach as we start walking into the water?
a.
the continental shelf
c.
the abyssal plain
b.
the seashore
d.
the continental slope
 

 11. 

The section of the ocean floor that connects the continental shelf to the abyssal plain is the
a.
continental shelf
c.
mid-ocean ridge
b.
continental slope
d.
continental divide
 

 12. 

Which is the correct sequence of seafloor features as you move from the shoreline outward?
a.
continental shelf - continental slope - abyssal plain
b.
continental slope - continental shelf - abyssal plain
c.
continental shelf - continental slope - mid-ocean ridge
d.
continental slope - abyssal plain - mid-ocean ridge
 

 13. 

The flattest place on Earth is
a.
the Abyssal Plain
c.
in Oklahoma on the Great Plains
b.
the Sahara Desert
d.
the continental shelf
 

 14. 

The total salinity of the world’s oceans is
a.
3.5%
c.
50 %
b.
25%
d.
15%
 

 15. 

A scientist who studies the ocean is
a.
a geologist
c.
a meteorologist
b.
an oceanographer
d.
a biologist
 



 
         Start Over