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WorksheetsEarth Science Test 6 Prep
Total questions: 29
Worksheet time: 15mins
Why do earthquakes usually occur at plate boundaries?
The rock on the edges of tectonic plates is soft and gives in easily to various pressures.
Rock in environments near tectonic plate boundaries experience great stress.
The boundaries between tectonic plates have been seismically active for millions of years.
Rock in environments near tectonic plate boundaries experience little stress.
What happens when two oceanic plates collide?
The denser plate fractures.
The less dense plate fractures.
The less dense plate subducts.
The denser plate subducts.
What direction are the plates moving in relation to each other at point C?
towards each other
away from each other
sideways to each other
one up, the other down
During a major earthquake, buildings:
always remain standing.
do not move.
may sway or collapse.
are never damaged.
Tectonic plates can include:
only asthenosphere.
only oceanic crust.
only continental crust.
both oceanic and continental crust.
Why does rock begin to sink at A and E?
It has warmed and is more dense.
It has cooled and is more dense.
It has cooled and is less dense.
It has warmed and is less dense.
The Himalaya Mountains were formed in a collision at a:
divergent boundary.
convergent boundary.
transform boundary.
fracture zone.
An example of a transform boundary is the:
San Andreas Fault in California.
Nazca plate on the west coast of South America.
Eurasian plate at the Mid-Atlantic Ridge.
island arc of Japan.
The theory that explains why and how continents move is called:
Continental Drift Theory.
Paleomagnetism.
Plate Tectonics Theory.
Seafloor Spreading Theory.
What are the two sources of energy heating Earth’s mantle?
sunlight and radiation from space
motion and other forms of kinetic energy
cosmic rays and gravitational energy
radioactive decay and heat from Earth’s interior
Frequent earthquakes in an area may indicate:
tectonic plate boundaries.
seafloor spreading.
mantle convection.
reversed polarity.
Convection, ridge push, and slab pull work together to produce:
continental lithosphere.
constant tectonic plate motion.
earthquakes.
fracture zones.
Tectonic plates are blocks of:
magma.
magnetic rock.
asthenosphere.
lithosphere.
At the center of a mid-ocean ridge is a(n):
subduction zone.
fracture zone
rift valley
deep-ocean trench
What occurs at a transform boundary?
Oceanic lithosphere collides with continental lithosphere.
Magma rises to the surface and forms a mid-ocean ridge.
Two plates slide past each other horizontally.
Two plates collide and crumple.
When the oceanic and continental lithospheres collide:
the oceanic plates subducts.
the continental plate subducts.
their momentum stops each other.
they reach isostasy.
What is subduction?
One plate collides with another.
One plate destroys another.
One plate goes beneath another.
One plate divides another.
The Pacific Ring of Fire is:
a mid-ocean ridge.
a chain of volcanic islands.
a zone of active volcanoes.
a rift valley.
Earthquakes generally occur at plate boundaries where:
stress on rocks is greatest.
the most rock is found.
stress on rocks is low.
magnetic pull is greatest.
What are food, water, flashlights, and a portable radio needed for?
measuring surface waves
preparing for earthquakes
finding shadow zones
predicting earthquakes
The collision of two continental plates results in which land feature?
valleys
mountains
volcanoes
trenches
How did the rise of the Himalayan Mountains affect Earth?
Earth became more round.
World wind patterns were altered.
Sea currents changed direction.
Ice caps melted.
As Australia drifted away from Asia, what happened to its animal life?
Australian animals became more like North American animals.
Australian animal life remained very similar to Asian animal life.
Asian life forms changed dramatically.
Australian animal life evolved into different forms than Asian animal life.
What is the movement of heated materials upward and the movement of cooled materials downward called?
Coriolis effect
contraction
convection
climate
What did the breakup of Pangea change, besides the size of the continents?
world climates
granite rock
the location of cities
the orbit of Earth
Where would you expect to find the hottest rock?
A and B
B and C
C and D
A and D
How do scientists explain the movement of Earth’s tectonic plates?
They are floating in the oceans and move randomly.
They move when heat creates convection currents in Earth’s mantle.
They move when volcanoes erupt and earthquake faults slip.
The spinning of Earth gives each plate energy that moves the continents.
What is the epicenter of an earthquake?
the location along a fault where the first motion of earthquake occurs
a seismic wave that travels along the surface of Earth
the point on Earth’s surface directly above the earthquake’s focus
the last place that motion in an earthquake is detected
What should you do if you are indoors during an earthquake?
Stand near a window or near a heavy piece of furniture.
Get on a bus and get as far away as possible, as fast as possible.
Stay away from windows and objects that may fall. Stand in a doorway.
Find your belongings. Lie down in a doorway, if possible.
