Earth Structure and Plate Tectonics Review
Name that Layer...
Earth Structure and Plate Tectonics Review
1
Which layers make
up the lithosphere?
A crust
B mantle
C inner core
D outer core
Multiple answer
Earth Structure and Plate Tectonics Review
Why wouldn’t the fossil of an ocean fish
found on two different continents be good
evidence of continental drift?
An ocean fish could swim between
continents so an ocean fish fossil found on
two different continents would simply mean
that the fish had migrated near one
continent to another at some time.
Earth Structure and Plate Tectonics Review
2
Which layer has the
lowest temperature?
A crust
B inner core
C mantle
D outer core
Multiple choice
Earth Structure and Plate Tectonics Review
What kind of plates are colliding here?
Earth Structure and Plate Tectonics Review
True
False
The Continental Drift Theory was widely accepted when it first
came out.
Harry Hess came up with the idea that the continents have drifted
to their current location.
Alfred Wegener came up with the idea of sea-floor spreading
The Mid-Atlantic Ridge is an example of a convergent plate
boundary.
A tension force is associated with a divergent plate boundary
The plates move on average 1 to 25 miles a year.
Convection currents have nothing to do with
density.
Earth Structure and Plate Tectonics Review
3
Which layer has the
highest temperature?
A crust
B core
C mantle
D lithosphere
Multiple choice
Earth Structure and Plate Tectonics Review
What kind of plates are colliding here?
Earth Structure and Plate Tectonics Review
4
Which layer takes up
most of Earth's
structure?
A crust
B inner core
C mantle
D outer core
Multiple choice
Earth Structure and Plate Tectonics Review
What are the scientific names for these
layers?
Earth Structure and Plate Tectonics Review
Was Wegner’s Theory of Continental Drift widely accepted by other scientists
when it was first published? Explain why. You should have at least two
examples.
a. He did not have a driving mechanism to explain why or how the land moved.
b. He was meteorologist not a geologist.
c. He didn’t think it was his job to provide a mechanism.
d. People didn’t believe such large land masses could move across the ocean
floor.
e. His evidence was based on other people’s findings and looked at as
coincidence.
Earth Structure and Plate Tectonics Review
Name that creature or plant.
Earth Structure and Plate Tectonics Review
What are two
concepts
these
diagrams
could be
representing?
Earth Structure and Plate Tectonics Review
The theory that the Earth's crust and upper
mantle are broken into sections is called ___.
A. seafloor spreading
B. plate tectonics
The Himalayas were formed at a ___.
A. convergent boundary B. transform fault
The San Andreas fault is a ___.
A. divergent boundary
B. transform fault
The Mid-Atlantic Ridge is a ___.
A. divergent plate boundary B. transform fault
Plates float on the ___.
A. asthenosphere
B. lithosphere
Earth Structure and Plate Tectonics Review
What type of plate boundary is this?
Earth Structure and Plate Tectonics Review
Name that Plate! What are the names of the plates in the picture above?
Earth Structure and Plate Tectonics Review
Plates are composed of the ___.
A. crust and part of the upper mantle
B. lithosphere and asthenosphere
A _____ is created where one plate moves under
another.
A. mantle
B. trench
The youngest material of the ocean floor is found
at mid-ocean ___.
A. ridges
B. trenches C. basins
Plates move apart at __ boundaries.
A. convergent B. divergent
In towing magnetometers across the ocean floor,
scientists found ____ bands of magnetism.
A. very weak B. alternating C. no
Earth Structure and Plate Tectonics Review
Click and Drag Matching
Makes up the plates. The word comes from the
Latin word Litho.
The thin outer layer of the Earth.
Solid part of the Earth. Very dense and made of
Iron and Nickel.
Mantle
Inner Core
Outer Core
Lithosphere
Largest layer of the Earth.
Asthenosphere
Plastic-like layer of the Earth. The plates ride
on top of this.
Liquid layer of the Earth.
Crust
Earth Structure and Plate Tectonics Review
What kind of plates are colliding here?
Earth Structure and Plate Tectonics Review
Sea-floor spreading occurs because ____.
A. molten material in the mantle rises to the
surface at divergent plate boundaries.
B. new material is being added to the
asthenosphere.
C. sediments accumulate at the area of spreading
The solid center of Earth is the_____.
A. inner core
B. asthenosphere C. mantle
The ____ is the largest layer inside Earth.
A. inner core
B. crust
C. mantle
The ____ is the thinnest layer of Earth.
A. inner core
B. crust
C. mantle
Earth Structure and Plate Tectonics Review
Transform
Plate Boundary
What kind of plate boundary is this?
Earth Structure and Plate Tectonics Review
trench
Continent
(top
ofplate
crustal
plate)
Mantle
conveyer
belt/convection
current
ocean
floor
partially
molten
rock
becomes
new molten
ocean
crustal
plate
mid-ocean
ridge
old
ocean
floor
becomes
partially
rock
crustal
crustal
platefloor
Click the term and drag it to the proper place on the diagram.
Earth Structure and Plate Tectonics Review
Click and Drag Matching
Reptile fossil found in South America and Africa
Fern fossil found in Africa, Australia, India, South America, and
Antarctica
Clues that support continental drift
Mountains similar to those in Greenland and Western Europe
An underwater mountain range
Scientist who suggested theory of continental drift
Scientist who suggested theory of sea-floor spreading
Material that rises to surface at mid-ocean ridge
Place where the seafloor is forced down into the mantle
Age of oldest continental rocks
Wegener
Appalachians
Molten
material
4 billion years
Rock, Fossil
and Climate
Glossopteris
Mesosaurus
Harry Hess
Mid-ocean
Ridge
Trench
Earth Structure and Plate Tectonics Review
The age of the rocks get __ as you move away
from the mid-ocean ridge.
A. newer
B. older
The age of the oldest rocks on the continents
would be __ than the age of the oldest rocks on the
seafloor.
A. younger
B. older
What is believed to cause plates to move across the
Earth's surface?
A. convection currents
B. ocean currents
C. wind currents
When an oceanic plate and a continental plate
collide, which one usually stays on top?
A. oceanic plate
B. continental plate
When two plates collide, the one that is
____usually stays on top?
A. less dense
B. more dense
Earth Structure and Plate Tectonics Review
Click and Drag Matching
magnetic
Poles that reverse themselves
Age of oldest seafloor rocks
Machine that records magnetic data
Direction in which ocean floor moves
Process that forms new sea-floor
Location of youngest seafloor rocks
Movement of continents
Nearest the
ridge
magnetometer
200 million
years
Sea-floor
Spreading
Continental
Drift
Away from
the ridge
Earth Structure and Plate Tectonics Review
True
False
The layers of the Earth get denser as one travels downward
towards the center of the Earth.
The plates are still moving today.
Less dense magma sinks, while more dense magma rises to
create convection currents.
Convergent boundaries are associated with a compression force.
Earth Structure and Plate Tectonics Review
Explain why there are few volcanoes in the Himalayas yet there are so
many earthquakes.
Volcano Reason:
There are few volcanoes in the Himalayas because it is a continentalcontinental plate boundary that results in uplift with little or no
subduction zone to create volcanoes. There are also no hot spots in the
Himalayas to create volcanoes.
Earthquake Reason:
There are many earthquakes in the Himalayas because the continentalcontinental boundary is a convergent boundary that creates
compression forces on the land resulting in the uplifting of the
continents and earthquakes.
Earth Structure and Plate Tectonics Review
The Andes Mountains, the Himalayas and the Islands of Japan were all
formed at convergent plate boundaries. Explain how the formation of the
Andes Mountains, the Himalayas and the Islands of Japan are different.
(Hint: Discuss the types of plates involved for each location.)
Andes Mountains:
The Andes Mountains were formed by a oceanic-continental plate boundary. The less
dense South American (continental) plate is riding over the more dense Nazca (oceanic)
Plate resulting a subduction zone, trench and volcanoes.
Himalayas:
The Himalayas were formed by a continental-continental plate boundary. The Indian or
Indo-Australian Plate is colliding with the Eurasian Plate resulting in the uplifting of the
continental crust to form the tallest mountains in the world. There are many
earthquakes as a result of this uplifting movement.
Islands of Japan:
The Islands of Japan were formed by oceanic-oceanic plate boundaries. The Pacific Plate
is colliding with the Eurasian Plate and the Philippine Plate is also colliding with
Eurasion Plate creating a deep ocean trench/subduction zone and the Island Arc of Japan
because the plates are trying to go down creating many volcanoes and earthquakes.
Earth Structure and Plate Tectonics Review