Download Plate Tectonics Jeopardy 2016-17 - WITH

Misc 1
Continental Evidence of
Plate Tectonics
Drift
Plate
Movement
Misc. 2
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1. The types of crust, and their
respective densities
1A. What are Continental crust,
and Oceanic crust. Continental
crust is less dense than Oceanic
crust.?
2. Convergent boundaries can
create the following 4 things
2A. What are earthquakes,
volcanoes, mountains, trenches
2B. Bonus: What did I skip in
this answer? (5th thing that is
created)
3. The mountains in island arcs
can be simple mountains or
scary, highly explosive
_________
3A. What are volcanoes?
3B. Why are there volcanoes at these
island arcs and also on SOME subduction
zone mountains on shore, like near Seattle,
and the West Coast of South America?
4. Physical surface features of the
land are also known as
4A. What is topography?
4B. What do we call the topographic feature that is
an extension of the continental crust under the
ocean along many coasts, especially our east coast?
5. The San Andreas Fault is this
type of boundary
5A. What is transform?
5B. Where is the fault located and what type
of crustal interaction is at the fault?
6. This German scientist
proposed a hypothesis in 1912
that the continents were once
joined as a single landmass
6A. Who is Alfred Wegener?
7. The most recent ‘supercontinent’
that we believe existed was called
____________ (spelling counts)
7A. What is Pangaea?
7B. Bonus: Approximately when did
Pangaea break up?
7C. Double Bonus: What’s the proposed
name of the next supercontinent?
8. This is what was missing from
Wegener’s continental drift
hypothesis, and was a large part
of the reason other scientists
rejected his idea.
8A. What is a method by which
the continents could move around
the planet?
8B – Bonus: Wegener’s continental
drift hypothesis was changed to this
current theory when the mechanism
of plate movement was discovered.
9. These were found on the
shores of Greenland, which is
now in the Arctic Circle, helping
to support Wegener’s hypothesis.
9A. What are fossils of tropical
plants?
10. This was Wegener’s best
evidence for continental drift,
showing how the same types of
these were in both Brazil and
West Africa, as well as both the
Appalachian Mountains and the
Scottish Highlands
10A. What are the kinds of rocks
(and fossils) that make up the
continents, and the layers that
they are found in?
10B. We also can show that the mountains in Africa,
the US, and Eurasia are linked by fossils and rock
strata (layers), what are those 3 sets of mountains?
11. Huge underwater mountain
ranges found in every ocean
11A. What are mid-ocean ridges?
11B. What type of plate boundary do
they represent? What is the crustal
interaction at that boundary? Do
earthquakes occur there?
12. Rock samples reveal that this
age of rocks is closest to the midocean ridge
12A. What are the youngest rocks?
12B. What FORM of rocks are they? (igneous,
metamorphic, or sedimentary)
12C. What TYPE (name) of rock is most common
here?
12D. How old are the oldest oceanic rock layers
along our eastern shores?
13. These are the 4 things that we have
studied on the laminated maps that
work together to give us a full
understanding of changes to the earth
that are related to tectonic plate
movement
13A. What are volcanoes,
earthquakes, topography, and
geochronology?
14. These are the 2 structures that are
found around the Pacific Ocean and
are there as a result of subduction of
the oceanic plate under the continental
plate, thereby providing evidence of
tectonic plate movement.
14A. What are ocean trenches and
the island arcs that pop up along
them?
14B. Bonus: Name 2 Island Arcs
14C. Double bonus: Why aren’t the
Hawaiian Islands an Island Arc and
what are they?
15. At some locations, heated rock
rises in plumes or thin columns from
the mantle, often developing
volcanoes, which can turn into islands
if they get big enough to appear above
the water. What is the name we give
to these spots on the planet?
15A. What are hot spots?
15B. How do hot spots provide evidence for
tectonic plate movement?
15C. Name 2 Hot Spots in the United States.
16. This is what is created when
hot rock rises, cools, sinks; rises,
cools, sinks again…etc.
16A. What is a convection
current?
17. This is the speed of convection
currents in the aesthenosphere
17A. What is approximately 5
cm/year?
17B - Bonus: What does aesthenosphere mean?
17C - Better bonus: What is the speed of the
plates spreading apart at the center of the Atlantic
and what type of boundary is it? Crustal
interaction?
18. This is the pair of forces, in
addition to convection currents in
the mantle, that we believe are
responsible for plate movement
(The definition of a force in
middle school is that it is a push
or a pull. Hint, hint!)
18A. What are ridge push and
slab pull?
18B - Bonus: What powers the ridge
push and slab pull?
19. Slab pull occurs when this
accelerates the edge of a cool,
dense plate into the
asthenosphere
19A. What is gravity?
19B. What do we now know is helpful to
work in thinning the mantle so that the
subducted slab can more easily move
toward the lower parts of the mantle?
20. This is what causes the cooler
rock to sink, creating a
convection current
20A. What is changes in density?
(becomes more dense and denser
things will sink)
21. The switching of Earth’s
magnetic poles is called this
21A. What is a magnetic
reversal?
22. This is how scientists know a
magnetic reversal has taken place
22A. What is the magnetic
minerals in the sea-floor rock line
up with Earth’s magnetic poles in
alternating directions?
22B - Bonus: Are the reversals done
on a specific timetable?
23. This occurs as continents split
apart at a divergent boundary and
will create a lake or sea if it sinks
below sea level
23A. What is a rift valley?
23B - Bonus: 2 of the many spots on
earth where it happens are? (one
island nation, one continent)
24. This is how old Continental
Crust is
24A. What is roughly 3.8 to 4
billion years old?
24B. How old is the oldest oceanic crust and
where can some of it be found?
24C. How old is the earth itself?
25. This is the deepest place in the
world’s oceans, (36,000 ft.) caused
by the Pacific Plate sinking beneath
the Philippine Plate
25A. What is the Mariana Trench?
25B. Which Island Arc is along the Mariana
Trench?