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Geology 1 Review

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Title: Geology 1 Review


1
Geology 1 Review
2
  • What are the layers of the Earth?
  • Crust, mantle (upper lower), core (inner
    outer
  • 2. Identify the thinnest layer of the Earth.
  • Crust
  • 3. Explain the differences between continental
    crust and oceanic crust.
  • Continental crust is thicker than oceanic crust.
  • Oceanic crust is more dense than continental
    crust.

3
  • 4. Describe the structure of the mantle.
  • Upper mantle is solid (makes up part of the
    lithosphere)
  • Lower mantle is liquid-like. Convection current
    found here move crustal plates.
  • 5. How does density change as you move towards
    the center of the Earth?
  • As you move from the crust towards the center of
    the Earth, density increases.

4
6.
4
5
7.
1
6
4
8.
2
9.
7
10.
2
11.
1
8
  • 12. Identify the largest ocean on Earth.
  • Pacific
  • 13. Identify the ocean that the east coast of the
    United States meets.
  • Atlantic
  • 14. What ocean is found by Antarctica?
  • Southern

9
15.
4
16.
4
17.
4
10
  • 18. Explain where warm and cold currents form.
  • Warm currents form near the equators, while cold
    currents form near the poles.
  • 19. How does salinity affect ocean currents?
  • Water with greater salinity (more salt) sinks
    while water with less salt rises.
  • 20. What causes surface currents to form?
  • Winds
  • 21. Which way do surface currents move in the
    Northern Hemisphere?
  • clockwise

11
22. Identify the Features
A Continental slope
E Volcano
B Seamount
F Continental shelf
C Plains
D Mid ocean ride (rift valley)
12
  • 23. What are the deepest parts of the ocean
    called?a. Deep-sea trenchesb. Abyssal
    plainsc. Continentsd. Seamounts
  • 24. What is a seamount?
  • a. A scientist who studies the ocean floorb.
    Deep-sea trenchc. A fancy seagulld. A volcano
    that formed on the ocean floor.

a
d
13
25.
3
14
  • 26. Explain how to continents have changed over
    millions of years.
  • They have separated over time.
  • 27. Explain how sea floor spreading occurs.
  • Magma rises and cools at the rift valley of a
    mid-ocean ridge forming new crust, while the
    older crust is pushed away
  • 28. What happens to the older crust that is
    pushed away from ocean ridges?
  • It is pushed down into a subduction zone and
    melted.

15
29.
2
16
30.
a.
They slide past each other, or collide
(converge), or separate (diverge)
b.
Formation of a volcano, volcanic eruption
17
31.
1
18
32.
a.
Sea-floor spreading OR continental drift
b.
They fit together like puzzle pieces OR have
matching fossils
19
33.
2
34.
2
20
35.
2
21
36.
a.
They fit together like puzzle pieces
b.
Earthquakes, volcano, formation of a trench or
subduction zone, formation of mountains,
sea-floor spreading
22
37.
a. What type of boundary is shown below? b. What
forms or can occur as a result?
a. convergent boundary (oceanic-continental )
b. trenches, volcanoes, deep earthquakes
23
38.
3
39.
2
24
40.
a.
Plate Tectonics
b.
Formation of a volcano, formation of a subduction
zone
25
a. What type of boundary is shown below? b. What
is occurring at this boundary?
41.
a. divergent plate boundary
b. new crust is made
26
42.
a. What type of boundary is shown below? b. What
forms or can occur as a result?
a. Transform
b. earthquakes
27
  • 43. What are the three types of boundaries?
  • Convergent, divergent, transform
  • 44. What direction do plates go for each?
  • Convergent collide
  • Divergent separate
  • Transform slide past each other
  • 45. Which boundary has a subduction zone?
  • Convergent (when continental crust collides with
    oceanic OR 2 oceanic crusts collide ? more dense
    crust sinks and melts

28
46.
a.
Earths crust has a lower temp than its interior.
b.
Earthquake, volcano, formation of a trench or
subduction zone, mountain building
c.
Oceanic crust is thinner than continental crust.
29
47.
a.
Movement of crustal plates
b.
Living things and habitats are destroyed,
volcanic dust and ash enters the atmosphere
changing climate.
30
48.
1
49.
4
31
50.
3
32
51.
4
52.
4
33
53.
4
34
54.
a.
San Francisco
b.
Building earthquake proof homes and buildings,
create an evacuation plan, create food supplies
35
55.
4
36
  • 56. Built up energy is released along a fault
    during a(n)
  • Earthquake
  • 57. Intense vibrations felt throughout Earths
    crust during an earthquake are called
  • Seismic waves
  • 58. Melted rock found beneath Earths surface is
    called
  • Magma
  • 59. The location where an earthquakes belongs is
    called the
  • Focus

37
  • 60. Where do most of Earths volcanoes and
    earthquakes occur?
  • Along the Ring of Fire (around Pacific Ocean)
  • 61. Which type of seismic wave is the slowest?
  • L-waves (surface waves)
  • 62. Which type of seismic wave is the fastest?
  • P-waves (primary waves)

38
63.
a.
They are located at the edges of plates, or on
the Ring of Fire.
b.
Locate shelters, create an evacuation plan, store
food reserves
39
64.
1
65.
2
40
66.
a. What is the elevation of point X?
640 feet
b. Where is the steepest part of the hill located?
On the west side of the hill, where the lines are
closer together.
41
67. The contour map below shows a hill. Two
elevations are labeled.
a. What is the contour interval?
500 400 100
100/5 spaces
20
X
b. Place an X on the map where an elevation of
430 feet could be located.
42
68.
a. What is the contour interval?
40/2
20m
100-60 40
b.
0 m
c.
The steepest slope can be found where the contour
lines are closer together.
43
69.
44
70.
a. Contour Interval
100m
b. Elevation of Black Bear Camp
540m
c. Elevation at Eagle Peak
1499m
45
a. Identify the landform shown at point A.
71.
Hill or mountain
b. What is the contour interval?
2000-1500 500
500/5
100 ft
c. What is the elevation at point B?
1550 ft
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