Review Game Zone
Flash Cards
(current)
Games
Teachers
Search
Sea-Floor Spreading
Test Description: Use this to review the Sea-Floor Spreading theory.
Instructions: Answer all questions to get your test result.
1) What technology did scientists use in the mid-1900s to map the mid-ocean ridge?
A
satellites
B
deep-sea diving
C
submarines
D
sonar
2) In sea-floor spreading, molten material rises from the mantle and erupts
A
at the north and south poles
B
along mid-ocean ridges
C
along the edges of all the continents
D
in deep-ocean trenches
3) Mid-ocean ridges are
A
found only in the Pacific Ocean.
B
found in all of Earth's oceans.
C
long deep-ocean trenches
D
located mostly along coastlines
4) How did scientists discover that rocks farther away from the mid-ocean ridge were older than those near it?
A
by determining the age of rock samples obtained by drilling on the sea floor
B
by mapping rocks on the sea floor using sonar
C
my measuring how fast sea-floor spreading occurs
D
by observing eruptions of molten material on the sea floor
5) The process by which the ocean floor sinks beneath an deep-ocean trench and back into the mantle is known as
A
subduction
B
conduction
C
convection
D
continental drift
6) Old oceanic crust is more dense than new oceanic crust because it is
A
cool
B
hot
C
moving toward a deep-ocean trench
D
conduction
7) The process of ___________ continually adds new crust to the ocean floor along both sides of the mid-ocean ridge.
A
sea-floor spreading
B
continental drift
C
plate tectonics
D
convection
8) Subduction occurs where the oceanic crust bends down toward the mantle at a(n) ________.
A
mid-ocean ridge
B
deep ocean trench
C
transform boundary
D
divergent boundary
9) The ocean floor sinks beneath a deep-ocean trench and back into the mantle in a process known as ________.
A
plate tectonics
B
continental drift
C
subduction
D
convection
10) The scientist credited with sea-floor spreading is _________
A
J. Tuzo Wilson, a Canadian scientist
B
Alfred Wegener, a German scientist
C
Dennis Lieding, a Libertyville social studies teacher
D
Harry Hess, an American geologist
*select an answer for all questions
Check Results & Get Answers
Play Games with the Questions Above
Teachers: Create FREE classroom games with your questions
Click for more info!
©2007-2024
ReviewGameZone.com
|
About
|
Privacy
|
Contact
|
Terms
|
Site Map
WAIT! Find what you needed?
×
Still Looking for the Answers?
Have Another Question?
Play a Review Game with These Questions?
Want to Make Your Own Test Like This One?