WorksheetsChapter 5 - Plate Tectonics
Total questions: 34
Worksheet time: 17mins
Name
Class
Date
1.
Earth is like a giant magnet because of convection currents in the
a)
outer core
b)
crust
c)
inner core
2.
What happens in sea-floor spreading?
a)
New rock forms
b)
New rock sinks into the mantle
c)
Old rock is pushed toward the middle of the ocean
3.
Subduction
a)
happens at deep ocean trenches
b)
makes the ocean floor bigger
c)
causes edges of continents to crumple and form mountains
4.
Earth's plates move because of
a)
seismic waves
b)
convection currents
c)
conduction
5.
A boundary where two plates push together is called a
a)
divergent boundary
b)
convergent boundary
c)
transform boundary
6.
A device that bounces sound waves off of the ocean floor is a
a)
convector
b)
sonar
c)
subductor
7.
A deep underwater canyon or valley where subduction occurs is in a
a)
mid ocean ridge
b)
deep ocean trench
c)
rift valley
8.
An underwater mountain range near where new sea floor is added is called
a)
a rift valley
b)
a deep ocean trench
c)
a mid ocean ridge
9.
The remains of a once living thing is a(n) __________________
a)
artifact
b)
fossil
c)
quarry
10.
____________ is the name given to the single landmass that broke apart 200 million years ago.
a)
Gonzowana
b)
Pangaea
c)
Panhandler
11.
Who proposed the hypothesis of continental drift?
a)
Alfred Wegener
b)
Luke Wagner
c)
Alfred Washinton
12.
Where is the deepest point in the ocean?
a)
Victoria trench
b)
Marianna trench
c)
Alexandria trench
13.
Continental crust is made mostly of the rock
a)
basalt
b)
granite
c)
gransalt
14.
The transfer of energy through space is
a)
Radiation
b)
Conduction
c)
Convection
15.
The transfer of heat between objects that are touching is called
a)
conduction
b)
convection
c)
radiation
16.
Continental plates that move apart form
a)
deep ocean trenches
b)
rift valleys
c)
mid-ridges
17.
Two plates move past each other in opposite directions at a _____________________boundary.
a)
convergent
b)
divergent
c)
transform
18.
Pressure ___________________ inside Earth from the crust to the core.
a)
remains constant
b)
decreases
c)
increases
19.
In the mantle, the cooler denser materials
a)
sink downward
b)
rise upward
c)
dissolve completely
20.
Sea-floor spreading takes place at
a)
deep ocean trenches
b)
mid-ocean ridges
c)
rift valleys
21.
The magnetic field reverses over time. Which direction is the magnetic field currently pointing?
a)
North
b)
South
c)
East
d)
West
22.
Mid-ocean ridges occur at __________________ boundaries.
a)
divergent
b)
convergent
c)
transform
23.
Which choice names Earth's layers in order from the innermost to the outermost?
a)
crust, mantle, outer core, inner core
b)
inner core, crust, mantle, outer core
c)
inner core, outer core, mantle, crust
24.
The mantle is composed of what parts? Check all that apply.
a)
the crust
b)
the asthenosphere
c)
the lithosphere
d)
the outer core
e)
the inner core
25.
Which layer is soft and flexible, but still a solid?
a)
lithosphere
b)
asthenosphere
c)
crust
26.
When you are watching a boiling pot of water on the stove, what are you viewing?
a)
convection currents in motion
b)
conduction currents in motion
c)
radiation through space
27.
What are the primary elements found in both the inner and the outer core? check the ones that apply.
a)
nickel
b)
carbon
c)
iron
d)
sodium
e)
phosphate
28.
Scientists get indirect evidence of continental drift by studying _______________________.
a)
rock samples
b)
fossils
c)
seismic waves
29.
Evidence has shown that Africa and North America were once connected.
a)
True
b)
False
30.
Which of earth's layers has the highest temperature?
a)
crust
b)
mantle
c)
core
31.
Which of Earth's layers is the thinnest?
a)
crust
b)
mantle
c)
core
32.
Oceanic crust is made up of
a)
granite
b)
basalt
c)
water
33.
The transfer of heat by the movement of particles in fluids is called
a)
radiation
b)
convection
c)
conduction
34.
The process in which continents slowly move is called
a)
Sea floor spreading
b)
Continental drift
c)
Subduction
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