WorksheetsEarth's Interior and Plate Tectonics
Total questions: 30
Worksheet time: 18mins
Name
Class
Date
1.
This layer of Earth is the thickest part
a)
crust
b)
outer core
c)
mantle
d)
inner core
2.
Which of these layers is ALL solid iron and nickle?
a)
inner core
b)
outer core
c)
lithosphere
d)
mesosphere
3.
Which of the following occurs because of convection currents?
a)
Tectonic plates on the crust move.
b)
The mantle increases in size.
c)
Pressure in the crust increases.
d)
Pressure in the crust decreases.
4.
What is the order of the layers?
a)
inner core, lithosphere, mesosphere, outer core, asthenosphere
b)
asthenosphere, lithosphere, mesosphere, outer core, inner core
c)
lithosphere, asthenosphere, mesosphere, outer core, inner core
d)
crust, core, mantle
5.
As you travel from the inner core to the crust, how would temperature, pressure and density of the material change?
a)
The would all increase
b)
The would all decrease.
c)
They would stay the same.
d)
Temperature would decrease, but pressure and density would increase.
6.
Where does the heat come from that drives this convection current in the mantle?
a)
The sun
b)
The crust
c)
the mantle
d)
the core
7.
Name the boundary
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
8.
Name the boundary
a)
convergent boundary
b)
divergent boundary
c)
transform boundary
d)
sergent boundary
9.
A subduction zone is formed...
a)
when one tectonic plate sinks below another
b)
at every type of convergent plate boundary
c)
at every type of divergent plate boundary
d)
at transform boundaries
10.
What are mid-ocean ridges?
a)
A chain of underwater waterfalls
b)
A chain of underwater volcanos
c)
A chain of underwater mountains
d)
A chain of underwater rocks
11.
What does the theory of continental drift state?
a)
The continents were once joined in a super-continent and have moved over time
b)
Continents are stationary and do not move
c)
The Earth is broken into lithospheric plates that move due to convection currents
d)
none of the above
12.
This land formation occurs at a divergent continental/ continental boundary.
a)
mid ocean ridge
b)
deep ocean trench
c)
pacific hot spot
d)
rift valley
13.
Geologists obtain indirect evidence about Earth's interior by...
a)
measuring pressure at the surface
b)
studying seismic waves
c)
drilling through each layer
d)
estimation of temperature in the layers
14.
Which of the following did not support continental drift?
a)
magnetic striping on the ocean floor
b)
identical fossils on continents
c)
mountain ranges
d)
coastlines fit like a puzzle
15.
Which of the following is where one plate slides under another plate?
a)
submarine zone
b)
divergence zone
c)
subduction zone
d)
lower zone
16.
During sea floor spreading, molten material rises up from the mantle...
a)
along the continents
b)
at the mid ocean ridges
c)
deep ocean trenches
d)
at north and south poles
17.
Which is true about hotter material in the mantle?
a)
more dense, sinks
b)
less dense, sinks
c)
less dense, rises
d)
more dense, rises
18.
Which layer of the Earth is the thinnest?
a)
mantle
b)
outer core
c)
inner core
d)
crust
19.
Mountains form from ...
a)
plates sliding past one another
b)
collision of plates
c)
plates moving away from each other
20.
How did scientists discover that rocks farther away from the mid ocean ridge were older than those near it?
a)
by observing eruptions of molten material on the sea floor
b)
by mapping rocks on the sea floor using sonar
c)
by determing the age of rock samples obtained by drilling on the sea floor
d)
by measuring how fast sea floor spreading occurs
21.
Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis?
a)
evidence from landforms
b)
evidence from fossils
c)
evidence from human remains
d)
evidence from climate
22.
Which type of plate boundaries occur at X?
a)
Divergent
b)
convergent
c)
transform
d)
subducting
23.
What feature occurs at Y?
a)
mid-ocean ridge
b)
deep ocean trench
c)
hot spot
d)
rift
24.
What is happening at Z?
a)
mid-ocean ridge
b)
subduction zone
c)
transform boundary
d)
sea floor spreading
25.
Transform boundaries are most likely to produce what phenomenon?
a)
volcanoes
b)
deep sea trenches
c)
underwater mountain ranges
d)
earthquakes
26.
What are the two types of crust?
a)
continental and oceanic
b)
ocean and basin
c)
lower and upper
d)
thick and thin
27.
The youngest rocks on the seafloor are most likely found...
a)
closest to a mid-ocean ridge
b)
farthest from a mid-ocean ridge
c)
near the coastlines
d)
closest to a deep sea trench
28.
What were magnetic stripes on the ocean floor used to show?
a)
the seafloor was spreading outward from the mid-Atlantic ridge
b)
the seafloor was spreading inward toward the mid-Atlantic ridge
c)
the seafloor was effectively stationary
d)
natural magnetic rocks always form in the mantle of the Earth
29.
What land form is created when an oceanic plate is subducted beneath a continental plate?
a)
mid-ocean ridge
b)
rift valley
c)
trench
d)
volcanic island arc
30.
What forms in convergent ocean to ocean boundaries?
a)
volcano
b)
trench
c)
subduction zone
d)
all of the above
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