Download Unit 7 Review Because of the weight of the rock above, pressure

Unit 7 Review
1. Because of the weight of the rock above, pressure inside Earth ___________as you go deeper. Pg 317
2. Three main layers make up Earth’s interior: ______________, ________________, and
_____________. Pg 317
3. The ____________________ is a layer of rock that forms Earth’s outer skin. Pg 318
4. The crust beneath the ocean is called ____________________ crust. Pg 318
5. Oceanic crust consists mostly of dense rocks such as ____________________. Pg 318
6. ____________________ crust, the crust that forms the continents, consists mainly of less dense
rocks such as granite. Pg 318
7. Below the crust is the ____________________, a layer of hot rock. Pg 318
8. The uppermost part of the mantle and the crust together form a rigid layer called the
____________________. Pg 318
9. The heat and pressure make the part of the mantle just beneath the lithosphere less rigid than the
rock. This soft layer is called the ____________________. Pg 319
10. The _________ ___________ is a layer of molten metal that surrounds the inner core. Pg 319
11. The _________ ___________ is a dense ball of solid metal. Pg 319
12. Label the parts of the earth. Pg 321
Word Bank: lithosphere
asthenosphere
oceanic crust
continental crust
outer core
Inner core
mantle
13. Heat is transferred through ______________, ________________ and __________________. Pg 323
14. ____________________ is the transfer of energy by electromagnetic waves. Pg 323
15. Heat transfer by direct contact of particles of matter is called ____________________. Pg 324
16. ____________________ is heat transfer by the movement of a heated fluid. Pg 324
17. ____________________ is a measure of how much mass there is in a volume of substance. Pg 324
18. Heat from Earth’s core and from the mantle itself causes the _________________
________________ in the mantle. Pg 325
19. Alfred Wegener was a scientist that created a hypothesis that all the continents had once been joined
together in a single landmass and have since drifted apart. Wegener named this supercontinent
____________________. Pg 327
20. Wegener’s idea that the continents slowly moved over Earth’s surface became known as
____________________ ____________________. Pg 327
21. Wegner supported his hypothesis with evidence from __________, ______________ and
________________. Pg 328-329
22. At the time, Wegner’s hypothesis was ______________ because Wegener could not provide a
satisfactory explanation for the force that pushes or pulls the continents. Pg 330
23. At the ________ ____________ , molten material rises from the mantle and erupts. The molten
material then spreads out, pushing older rock to both sides of the ridge. Pg 333
24. The process that continually adds new material to the ocean floor is called _________ ___________.
Pg 333
25. At deep-ocean trenches, ___________________allows part of the ocean floor to sink back into the
mantle in a process that takes tens of millions of years. Pg 336
26. _________ ___________ is the geological theory that states that pieces of Earth’s lithosphere are in
constant, slow motion, driven by convection currents in the mantle. Pg 340
27. A _____________ boundary is a place where two plates slip past each, moving in opposite directions.
Pg 342
28. The place where two plates move apart, or diverge, is called a __________________ boundary. Pg
343
29. The place where two plates come together, or converge, is called a _________________ boundary.
Pg 344
30. Identify the following plate boundaries.
Boundary: _____________
Boundary: _______________ Boundary: _______________
31. Both continental plates are mostly low-density granite rock. Therefore, neither plate is dense enough
to sink into the mantle. Instead, the plates crash head-on. The collision squeezes the crust into
____________________. Pg 344
32. A _________ ___________ is an area where magma from deep within the mantle melts through the
crust. Pg 353
33. Match the correct tectonic plate with the map.
B
C
C
E
A
D
F
F
_________South American Plate
_________Eurasian Plate
_________Pacific Plate
_________African Plate
_________Indo-Australian Plate
_________North American Plate
Topographic Maps
34. Some maps include information about a region’s ____________________, or its physical features,
such as mountains, hills, and valley. Pg 692
35. On a topographic map, a _________ ___________ connects points of equal elevation. Pg 692
36. The change in elevation from one contour line to the next is called the _________ ___________. Pg
692
Use the topographic map below to answer questions 37 – 39.
37. What is the contour interval of this topographic map? ____________________________________
38. How does the elevation change from point X to point W? ___________________________
39. At about what elevation does the Excelsior River start? __________________________________
Use the following topographic map to answer questions 40 – 42.
40. What is the contour interval of this map? _________________________________________
41. Which hill is steeper? _________________________________________________________
42. How do you know which hill is steeper? __________________________________________