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Science Q2T1 2015 Part 1
Test Description: Ch 6 Plate Tectonics
Instructions: Answer all questions to get your test result.
1) An enormous gap that forms when new crust cools and moves apart is called a
A
Convergent Boundary
B
Rift Valley
C
Continental Boundary
D
Divergent Boundary
2) A ____________ occurs wherever two plates move toward each other.
A
Continental Boundary
B
Convergent Boundary
C
Rift Valley
D
Divergent Boundary
3) A ____________ can be used to track some plate movements because it stays in about the same place while the tectonic plate above it keeps moving.
A
Rift Valley
B
Hot Spot
C
Transform Boundary
D
Mid-ocean Ridge
4) Plates move horizontally past each other along a ____________.
A
Transform Boundary
B
Divergent Boundary
C
Continental Boundary
D
Convergent Boundary
5) A spreading center is a ____________ on the ocean floor.
A
Transform Boundary
B
Continental Boundary
C
Convergent Boundary
D
Divergent Boundary
6) Patterns of ____________ recorded in ocean-floor rocks provide evidence of plate movement.
A
Mid-ocean Ridge
B
Magnetic Reversal
C
Hot Spot
D
Rift Valley
7) Mid-ocean ridges are sites where old crust sinks into the asthenosphere.
A
True
B
False
C
.
D
.
8) Pangaea was a supercontinent that existed about 200 million years ago.
A
True
B
False
9) The transfer of heat by the movement of matter is called conduction.
A
False
B
True
C
.
D
.
10) What are Earth's layers from the center to the surface?
A
inner core, outer core, crust, mantle
B
crust, outer core, mantle, inner core
C
crust, mantle, outer core, inner core
D
inner core, outer core, mantle, crust
11) Which of these would make the best model of Earth's crust?
A
a peach pit
B
an orange slice
C
an egg's shell
D
an egg yolk
12) A tectonic plate is a slab of Earth's
A
asthenosphere and inner core
B
crust and uppermost mantle
C
molten mantle and outer core
D
lithosphere and asthenosphere
13) Which of these did Wegener use to support his theory of continental drift?
A
fossils from ancient organisms and convection currents in the asthenosphere
B
similar rocks and similar fossils on different continents
C
convection currents in the asthenosphere and sea-floor spreading
D
sea-floor spreading and similar rocks on different continents
14) Oceanic crust at a mid-ocean ridge is
A
much older than continental crust
B
about the same age as continental crust
C
older than crust near a trench
D
younger than crust near a trench
15) Scientists think that the main driving force of plate tectonics is
A
convection in the lithosphere
B
slab pull
C
convection in the asthenosphere
D
ridge push
16) Which of the following is also known as a spreading center?
A
convection boundary
B
convergent boundary
C
transform boundary
D
divergent boundary
17) Earth's magnetic reversals are recorded in
A
deep-ocean trenches
B
the asthenosphere
C
the mantle
D
sea-floor rock
18) At transform boundaries, two plates
A
do not move in any direction
B
pull away from each other
C
scrape past each other
D
push against each other
19) The Alps are forming as a result of the European and African plates pushing against each other. This is an example of
A
continental-continental collision
B
oceanic-oceanic subduction
C
oceanic-continental subduction
D
oceanic-continental collision
20) Many scientists rejected continental drift when it was first proposed because
A
Wegener could not explain how Earth's continents moved
B
reversals in Earth's magnetic field had not yet occurred
C
Wegener had no evidence to explain the existence of Pangaea
D
studies of the ocean floor revealed its younger age
*select an answer for all questions
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