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The Theory of Plate Tectonics
The Theory of Plate Tectonics
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Quiz on Theory of Plate Tectonics, including the Theory of Continental Drift.
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Answers
1
As you go deeper into the Earth . . .
pressure increases.
All answers are correct.
temperature increases.
density (weight) increases.
2
A section of the lithosphere that moves slowly over the asthenosphere.
continent
tectonic plate
ocean floor
crust
3
Continents are . . .
Pieces of lithosphere that move on top of the asthenosphere.
Long underwater mountain ranges.
Sections of the ocean floor.
Large areas above sea level. Land masses.
4
Which of Earth's layers is made of mostly metal?
continental crust
core
oceanic crust
mantle
5
There are about _____ major tectonic plates.
102
48
12
24
6
The idea that the continents move across the ocean floor.
The Theory of Plate Tectonics
The Theory of Continental Drift
All of the above.
The Theory of Seafloor Spreading
7
The tectonic plates are made of this layer.
crust
mantle
asthenosphere
lithosphere
8
All the continents were once connected as one single super continent called . . .
Jurassica.
Multi Continentus.
Pangaea.
The Southern Hemisphere.
9
Which is NOT a mechanical layer?
mantle
outer core
asthenosphere
lithosphere
10
Which of Earth's layers is liquid?
mesosphere
lithosphere
outer core
inner core
11
The Earth's magnetic field is created by the rotation of the liquid ______ outer core.
lava
magma
rock
metal
12
Sea floor spreading
When sediments cover the ocean floor in an even layer.
The process that stretches the ocean floor.
Occurs when one plate collides with another plate.
When two plates separate and create new ocean crust.
13
Which is NOT a compositional layer?
All of the above.
mantle
inner core
core
14
Which is NOT evidence that Alfred Wegener had when he came up with his theory.
Fossils of tropical plants in Antarctica.
Sonar images of the ocean floor.
Continents fit like puzzle pieces.
Fossils of same species in different continents.
15
When dividing the Earth into layers based on density or what material the Earth is made of.
Compositional Layers
Mechanical Layers
16
The traces or remains of living organisms.
biofule
mid-ocean ridge
fossils
igneous rock
17
The theory that pieces of Earth's lithosphere are in constant motion.
The Theory of Continental Drift
The Rock Cycle
The Theory of Relativity
The Theory of Plate Tectonics
18
Plate boundaries can occur . . .
in the middle of continents.
All of the above.
across the ocean floor.
along the edges of continents.
19
Earthquakes, mountain ranges, volcanoes, trenches and mid-ocean ridges occur at . . .
only on the ocean floor.
only on continents.
the center of tectonic plates.
tectonic plate boundaries.
20
The material at Earth's surface is . . .
more dense (heavier) than the material below.
less dense (lighter) than the material below.
All the material on Earth has equal density.
21
Ocean trench
An extra deep canyon or valley on the ocean floor.
An underwater mountain range.
A place where lava comes out underwater.
22
When dividing the Earth into layers based on state; rigid, solid, soft, liquid, etc.
Mechanical
Compositional
23
An underwater mountain range that creates new ocean crust.
volcanic island
mid-ocean ridge
rift valley
trench
24
The tectonic plates move on top of this layer.
lithosphere
asthenosphere
core
crust
