Name: 
 

Plate Tectonics



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

 1. 

In order to complete a convection current, the rising material must eventually ____ Earth.
a.
cool
b.
warm
c.
stop inside
d.
sink back into
 

 2. 

The result of plate movement can be seen at ____.
a.
plate centers
c.
ocean margins
b.
abyssal plains
d.
plate boundaries
 

 3. 

The ____ are mountains formed by the collision of the Indo-Australian Plate and the Eurasian Plate.
a.
Alps
b.
Rockies
c.
Appalachians
d.
Himalaya
 

 4. 

The Andes mountain range of South America was formed at a ____.
a.
transform boundary
c.
hot spot
b.
divergent boundary
d.
convergent boundary
 

 5. 

Seafloor spreading occurs because ____.
a.
earthquakes break apart the ocean floor
b.
new material is being added to the asthenosphere
c.
sediments accumulate at the area of spreading
d.
molten material beneath Earth's crust rises to the surface
 

 6. 

The Great Rift Valley in Africa is a ____.
a.
convergent boundary
c.
divergent boundary
b.
transform boundary
d.
mid-ocean ridge
 

 7. 

Plates slide past one another at ____.
a.
convection currents
c.
divergent boundaries
b.
transform boundaries
d.
subduction zones
 

 8. 

Continental drift states that continents have moved ____ to their current location.
a.
quickly
b.
vertically
c.
very little
d.
slowly
 

 9. 

The ____ is (are) an example of a transform boundary.
a.
Mid-Atlantic Ridge
c.
Appalachian Mountains
b.
San Andreas Fault
d.
Himalaya
 

 10. 

The boundary between two plates moving together is called a ____.
a.
divergent boundary
c.
convergent boundary
b.
transform boundary
d.
lithosphere
 

 11. 

The crust and upper mantle make up Earth's ____.
a.
continents
b.
asthenosphere
c.
core
d.
lithosphere
 

 12. 

Active volcanoes are most likely to form at ____.
a.
convergent oceanic–continental boundaries
b.
transform boundaries
c.
the center of continents
d.
continental convergent boundaries
 

 13. 

Plates move apart at ____ boundaries.
a.
convergent
b.
stable
c.
divergent
d.
transform
 

 14. 

The alignment of iron minerals in rocks when they are formed reflects the fact that Earth's ____ has reversed itself several times in the past.
a.
gravity
b.
asthenosphere
c.
core
d.
magnetic field
 

 15. 

____ currents inside Earth might drive plate motion.
a.
Horizontal
c.
Convection
b.
Vertical
d.
none of the above
 

 16. 

____ are formed when two continental plates collide.
a.
Strike-slip faults
c.
Volcanoes
b.
Rift valleys
d.
Mountain ranges
 

 17. 

The youngest rocks on the ocean floor are located ____.
a.
near continents
c.
at mid-ocean ridges
b.
far from mid-ocean ridges
d.
near Asia
 

 18. 

A ____ forms where two oceanic plates collide.
a.
subduction zone
c.
transform boundary
b.
rift valley
d.
hot spot
 

 19. 

Plates of the lithosphere float on the ____.
a.
core
b.
crust
c.
asthenosphere
d.
atmosphere
 
 
nar001-1.jpg
Figure 10-1
 

 20. 

According to Figure 10-1, what type of plate boundary occurs between the North American Plate and the Eurasian Plate heading east from North America?
a.
transform boundary
b.
convergent oceanic-continental plate boundary
c.
convergent oceanic-oceanic plate boundary
d.
divergent boundary
 

 21. 

According to Figure 10-1, what type of plate boundary occurs between the Nazca Plate and the South American Plate?
a.
convergent continental-continental plate boundary
b.
convergent oceanic-oceanic plate boundary
c.
convergent oceanic-continental plate boundary
d.
transform boundary
 

 22. 

The presence of the same ____ on several continents supports the hypothesis of continental drift.
a.
fossils
b.
rocks
c.
neither a nor b
d.
both a and b
 

Matching
 
 
Match each term with the correct statement below.
a.
mid-ocean ridge
d.
subduction zone
b.
convergent boundary
e.
continental drift
c.
asthenosphere
 

 23. 

Earth's thick, plasticlike layer is the _____.
 

 24. 

The main points of evidence for _____ are fossils, rocks, and climate.
 

 25. 

Plates move together at a(n) _____.
 

 26. 

A(n) _____ is an underwater mountain chain.
 

 27. 

One plate is forced under another in a(n) _____.
 
 
grp002-1.jpg
a.
Use
d.
on the
b.
the
e.
map.
c.
letters
 

 28. 

Divergent boundary
 

 29. 

Mid-ocean ridge
 

 30. 

Trench
 

 31. 

Continent-continent convergent boundary
 

 32. 

Convection current
 

 33. 

Subduction zone
 

 34. 

Andesite volcano
 

 35. 

Folded-faulted mountains
 

 36. 

Ocean-continent boundary
 
 
Match each term with the correct statement below.
a.
seafloor
c.
continents
b.
Pangaea
d.
lithosphere
 

 37. 

Alfred Wegener believed that the ______ were once joined.
 

 38. 

The Glomar Challenger gathered information about rocks on the _____.
 

 39. 

The crust and upper mantle make up the _____.
 

 40. 

The name ______ comes from two words that mean "all land."
 
 
Match each term with the correct description below.
a.
inner core
d.
mantle
b.
outer core
e.
crust
c.
aesthenosphere
 

 41. 

outermost layer of Earth
 

 42. 

largest layer of Earth
 

 43. 

liquid iron and nickle
 

 44. 

most dense part of the earth’s interior
 

 45. 

part of the mantle with the property of plasticity
 

 46. 

solid iron and nickle
 



 
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