Transcript Earth Movements

Earth Movements
3rd Grade Review
Find the word that fits the clue.
A crack in Earth’s
crust
A. Continent
B. Plate
C. Fault
D. Magma
Fault
Most fault lines are deep
in the crust, but some like
the San Andrea’s fault
can be seen on the
surface.
Find the word that fits the clue.
Hot, flowing rock
A. Vibration
below Earth’s surface B. Plate
C. Magma
D. Fossil
Magma
The crust and mantle have areas
of molten rock called magma.
When a volcano erupts, magma
comes to Earth’s surface.
Find the word that fits the clue.
Huge land mass that
may have existed 200
million years ago
A. Pangaea
B. Volcano
C. Continent
D. Plate
Pangaea
Long ago, Earth had just one
huge continent called
Pangaea.
Find the word that fits the clue.
Rapid back and forth
movement
A. Seismograph
B. Focus
C. Plate
D. Vibration
Vibration
The energy given off in an
earthquake sets off vibrations.
Find the word that fits the clue.
Remains of an
organism that lived
long ago preserved in
rock
A. Focus
B. Fossil
C. Fault
D. Lava
Fossil
Fossils of tropical plants have
been found on an island in the
cold Arctic.
Find the word that fits the clue.
A sheet of crust and
upper mantle that
covers Earth’s
surface
A. Plate
B. Pangaea
C. Fault
D. Continent
Plate
The surface of the Earth has
many moving parts called
plates. They are made of
crust and upper mantle rock.
Find the word that fits the clue.
Place in Earth where
the energy of an
earthquake is first
released
A. Magma
B. Fault
C. Focus
D. Volcano
Focus
When an earthquake occurs,
the crust shifts and energy is
released. The place energy is
first released is the focus.
Find the word that fits the clue.
An instrument for
measuring the
strength of an
earthquake
A. Seismograph
B. Thermometer
C. Vibration
D. Anemometer
Seismograph
Charles Richter
developed the Richter
scale to measure how
much energy an
earthquake releases. A
seismograph is used to
measure the strength of
the earthquake.
Find the word that fits the clue.
One of the seven
large land masses on
Earth
A. Plate
B. Pangaea
C. Fossil
D. Continent
Continent
Continents are the parts of the
curst that rise above the
ocean. We live on the
continent of North America.
Find the word that fits the clue.
Opening in Earth’s
crust through which
melted rock reaches
the surface
A. Magma
B. Volcano
C. Focus
D. Fault
Volcano
A volcano is a mountain with a vent.
The vent goes down into the Earth’s
surface. Hot liquid called magma flows
up through the vent to the Earth’s
surface.
Choose the correct phrase to finish
the sentence.
The layers of Earth
beginning with the
hottest are
A. magma, core, crust
B. Crust, mantle, core
C. Mantle, crust, plate
D. Core, mantle, crust
Core, mantle, crust
Choose the correct phrase to finish
the sentence.
The force that
changes Earth’s
surface most slowly is
A. Flood
B. Erosion
C. Volcano
D. Earthquake
Erosion
Sediments and soil may be
moved by wind, water, and
gravity. This movement is
called erosion.
Choose the correct phrase to finish
the sentence.
Earth’s plates are
always moving
because of
A. Convection currents
in the mantle
B. Earthquakes
C. Currents in the core
D. Earth’s rotation
Convection currents in the
mantle
Heat from the mantle makes the
plates move. This heat forms
convection currents. The convection
current is the movement of a heated
substance.
Choose the correct phrase to finish
the sentence.
New crust forms
A. Deposition
where magma rises at B. Continental Drift
mid-ocean ridges.
C. Subduction
This is known as
D. Ocean-floor
Spreading
Ocean-floor spreading
As magma cools it hardens
and forms new crust. This
process is called ocean-floor
spreading.
Choose the correct phrase to finish
the sentence.
Examples of
landforms are
A. Mountains
B. Valleys
C. Canyons
D. All of the above
All of the above
Valley
Mountain
Canyon
Choose the correct phrase to finish
the sentence.
Subduction occurs
when
A. A magma chamber
fills with molten rock
B. Fossils are created
C. Two plates collide
and one slides under
the other
D. Erosion takes place
Two plates collide and one
slides under the other
The light continental crust slides up
over the heavier oceanic crust. The
oceanic crust is forced down. It slips
into the mantle. This is called
subduction.
Choose the correct phrase to finish
the sentence.
The term Ring of Fire
refers to
A. The center of an
earthquake
B. A seismograph
reading
C. The crater of a
volcano
D. An area of volcanic
activity around the
Pacific Ocean
An area of volcanic activity
around the Pacific Ocean
Choose the correct phrase to finish
the sentence.
Weathering is the
breaking down of
rocks into smaller
particles by
A. Wind, waves, water,
and plants
B. Cast fossils and
trace fossils
C. Plates rubbing
against each other
D. Heat and pressure in
the Earth
Wind, waves, water, and
plants
Choose the correct phrase to finish
the sentence.
Evidence of an
earthquake includes
A. Lava flowing down a
mountain
B. Buildings falling
C. Cracks in Earth’s
crust
D. Fields buried in ash
Buildings falling and
cracks in Earth’s
crust
Choose the correct phrase to finish
the sentence.
What is the
Ring of Fire?
A. The Polar Region
B. A place where
tornados occur
C. An area of volcano
and earthquake
activity.
D. A area with an
unusual amount of
wild fires.
An area of volcano and earthquake
activity.
Good luck on your test!!!!