Chapter 7 Review: Scavenger Hunt
Name:_________________
Get signed for BONUS points: __________________
1. When rock changes its shape due to stress, this reaction is called
____________________.
2. The stress that occurs when two tectonic plates collide is called
___________________.
3. ________________________ is the theory that the Earth's
lithosphere is divided into tectonic plates that move around on top
of the asthenosphere.
4. The region where oceanic plates sink down into the
asthenosphere is called a _________________________.
5. When Earth's magnetic poles change place, this is called a(n)
____________________ reversal.
6. _________________________ are underwater mountain chains
that run through Earth's ocean basins.
7. _________________________ is the process by which new
oceanic lithosphere is created as older materials are pulled away.
8. The center of the Earth is called the ____________________.
9. Anticlines and synclines are the result of
____________________.
10. The ridge in the middle of the Atlantic Ocean formed along a
____________________ boundary.
11. Earth's ____________________ is liquid.
12. ___
__ type of mountain is the only one that is formed
by adding new material to the Earth's surface.
13. Mountains with sharp, jagged peaks, such as the Tetons, in
western Wyoming, that are produced when sedimentary rock
layers are tilted up by faulting are called ___
_
mountains.
14. The Mariana trench is the deepest point in the oceans—11,033 m below sea
level. This trench was formed at a __
__ boundary, where
one tectonic plate was subducted beneath the other.
15. A ____ fault often results when opposing forces cause rock to break and
move horizontally.
16. The type of fault that often results when rocks are pulled apart due to tension
is called a
.
17. When horizontal stress acts on a rock, __
__ form.
18. When two tectonic plates slide past each other horizontally, the boundary
between them is called a
.
19. _
___ is the process by which hot material from deep
within the Earth rises while cooler material near the surface sinks.
20. Wegener's continental drift theory suggests that at 245 million years a single
landmass was surrounded by a sea called
.
21. The North American plate consists
.
22. The thinnest part of a tectonic plate lies beneath
.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
There are_
major tectonic plates.
The _
___ is divided into tectonic plates.
The _
___ is made of solid rock that flows very slowly.
The word asthenosphere means
.
The word lithosphere means
.
The soft layer of the mantle on which pieces of the lithosphere move is
called the
.
The strong, lower part of the mantle that lies beneath the asthenosphere is
called the
.
The outermost, rigid layer of the Earth is called the
.
The diameter of the Earth's core is slightly larger than the diameter of
.
Scientists have learned that the mantle's composition has large amounts
of
.
Earth's lightest materials make up the
.
_
__ appears to cause movement of Earth's tectonic plates.
The speed of seismic waves depends on the ____ of the layer through which
they travel.
_____makes up most of the Earth's mass.
The type of mountain involving huge sections of the Earth's crust being
pushed up into anticlines and synclines is the
.
The San Andreas fault is an example of a
.
The part of the Earth on which the tectonic plates are able to move is the
.
The part of the Earth that is a liquid is the
.
True or False:
41. The asthenosphere is the thinnest layer.
42. Temperature and pressure increase toward the center of the Earth.