Test 5 Plate Tectonics
1. The two types of crust are _________________________ and _________________________.
A) oceanic, volcanic
B) continental, volcanic
C) oceanic, continental
D) land, pangaea
E) oceanic, land
◾2. Iceland, the Samoan Islands, and Hawaii are examples of landforms created by
____________________________.
A) a divergent zone
B) a subduction zone
C) a convergent zone
D) a ring of fire
E) a hot spot
◾3. At mid-ocean ridges, new ____________________________ crust is created.
A) continental
B) convergent
C) oceanic
D) transform
E) volcanic
◾4. Seafloor spreading is a process that creates new ________________________ crust.
A) volcanic
B) convergent
c) continental
d) oceanic
◾5. The _________________________ Islands are located in the middle of the Pacific plate.
A) Hawaiian
B) Icelandic
C) Ring
D) Samoan
E) Australian
◾6. Convection currents in our Earth's mantle drives the process that moves our
__________________________.
A) clouds
B) volcanoes
C) plates
D) mountains
E) oceans
◾7. The largest and most powerful mountains and volcanoes are located
_____________________________.
A) on Iceland
B) above surface
C) on Australia
D) underwater
E) on the surface
◾8. Areas where continental and oceanic plates converge are also said to be
_____________________________.
A) Australian zones
B) mid-pacific zones
C) mid-atlantic zones
D) Icelandic zones
E) subduction zones
◾9. Between oceanic and continental crusts, the ___________________ crust is more dense.
A) transform
B) oceanic
C) convergent
D) divergent
E) continental
11. As the ocean seafloor spreads, the newly formed floor will adapt a specific magnetic signature
according to the Earth's magnetic pole at that time. As years pass, lateral segments of seafloor will thus
share the same _____________________ signature on either side of the mid-oceanic ridge.
A) convergent
B) divergent
C) zubductive
D) volcanic
E) magnetic
◾12. In seafloor spreading, the further the ocean floor is away from the mid-ocean ridge, the
_____________________ that floor will be.
A) older
B) newer
C) rockier
D) younger
◾13. Iceland is located in the middle of
_______________________________________________________________.
A) the mid-Australian ridge
B) the mid-Caribbean ridge
C) the mid-Pacific ridge
D) the mid-convergent ridge
E) the mid-Atlantic ridge
◾14. In an island chain such as Hawaii, volcanic islands further away from the hot spot will tend to be
________________________.
A) rockier
B) older
C) newer
D) younger
15. What is one reason that the Earth's core is so hot?
a. Coal and oil burn in the core.
b. As heavy elements in the core decay, they produce radioactive heat.
c. The Sun heats up the Earth and causes the inside to melt
15. After our sustainability project this week you should understand the slogan Reduce, Reuse, Recycle.
Of the three Reduce is the most important. Why is that so? Minimum 50 words. Use examples from your
week without trash to support your answer. Only nouns and verbs count as words in the word count but
it must in complete sentences. (11 points)
16 If you had to make your presentation to the judges tomorrow, concerning your healthy ecosystem,
what significant information would you present and why? You must discuss at least 5 main points (11
points)
17. Label the diagram below:
A
B
C
D
E
18. What is the present day theory concerning the production of the Earth’s Magnetic field?
19. What evidence supports the idea that Earth's Magnetic Field Flip Could Happen Sooner Than
Expected? Discuss 2 pieces of evidence from the video.
20. For each of the following types of plate boundary, describe exactly what is present and
what happens at the boundary: (a) divergent boundary, (b) convergent boundary, (c)
transform boundary.
21. Explain magnetic anomalies found on the sea floor. Why do they occur and what do they
tell us about the development of the sea floor?