Plate Tectonics

Multiple Choice

the place where two plates meet

• cross section

• pattern

• surface

• plate boundary

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Earth's outermost layer of hard, solid rock that is underneath the soil, vegetation, and water

• plate

• mantle

• outer layer or crust

• surface

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one of the very large sections of hard, solid rock that make up Earth's outer layer

• cross section

• mantle

• trench

• plate

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a sudden shaking of Earth's surface

• earthquake

• pattern

• tornado

• storm

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the layer of soft, solid rock underneath Earth's plates

• plate boundary

• plate

• mantle

• outer layer

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an underwater mountain range formed when two plates move apart (Divergent)

• trench

• rift

• mid-ocean ridge

• earthquake

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a long, deep indentation in the ocean floor formed when two plates move together

• rift

• pattern

• mantle

• trench

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any of the many processes in which gas, lava, and ash are pushed out on the surface of the earth.

• earthquake

• volcanic activity

• rifting

• tornado

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the slow pulling apart of land that is caused by plate movement

• rifting

• moving

• spacing

• converging

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A plate boundary where two plates move away from each other is called

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

• Subduction

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Scientists hypothesize that a super continent existed 200 million years ago.  This continent is called

• America

• Super Earth

• Pangea

• Eurasia

Multiple Choice

A Plate Boundary where two plates move toward each other is called

• Convergent Boundary

• Divergent Boundary

• Transform Boundary

• Subduction

Multiple Choice

What is the difference between the lithosphere and asthenosphere that makes up the mantle?

• The lithosphere is ismade of dense solid meal whle the asthenosphere is made of liquid molten metal

• The lithosphere is a mixture of gasses while the asthenosphere is made of solid rock

• The lithosphere is molten rock that moves while the asthenosphere is ridid and thin

• The lithosphere is made of solid rock while the asthenosphere is more flexible hot rock that moves.

Multiple Choice

Convergent Plate Movement can create

• Rifts

• Mountains

• Ocean Ridges

• Radiation

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_______________ Currents within the mantle cause the earth's plates to move and shift. molten material rises and falls due to density, heat, and gravity

• Convection

• Radiation

• Conduction

• Wind

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Divergent Plate movement can create

• Convection Currents

• Conduction

• Mountains

• Rifts and ocean ridges

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When pressure builds between two tectonic plates, it can suddenly release causing a (an) ______________________

• Earthquake

• Volcano

• Convection Current

• Gravitational Pull

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Earth's plates meet at ____________.

• plate tectonics

• plate boundaries

• continental drift

• oceans

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Breaks in the crust called __________ form where plates meet.

• mountains

• rift valleys

• faults

• trenches

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Plates slide past each other at _________________ boundaries.

• divergent

• convergent

• transform

• universal

Multiple Choice

What is the motion of Earth's plates like?

• fast and in stages

• slow and in stages

• fast and constant

• slow and constant

Multiple Choice

Created by a divergent boundary.

• Rocky Mountains

• Mariana Trench

• Mid Atlantic ridge

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Which of the following is where one plate slides under another plate?

• submarine zone

• divergence zone

• subduction zone

• lower zone

Multiple Choice

In some areas of the world, like California and Japan, earthquakes are a common occurrence. How can this best be explained?

• The strong ocean currents are undermining both areas causing earthquakes.

• Both areas are located near the edge of the Pacific Ocean, the unstable sand causes earthquakes.

• Both areas are subjected to strong ocean wind and waves that causes earthquakes.

• Both areas are on the boundary of active plates, the motion of the plates causes earthquakes.

Multiple Choice

Observe this diagram of a plate boundary. One statement BEST describes what is happening. It is that

• the oceanic crust is melting.

• the denser ceanic crust is subducting under the less dense oceanic crust

• volcanic islands are forming.

• the tectonic plates are moving away from each other.

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The map in the picture shows tectonic plate boundaries. This map would be useful in predicting the location of future

• droughts

• hurricanes

• earthquakes

• tornadoes

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What geological forces might be responsible for this range of mountains?

• diverging tectonic plates

• erosion of the land by the ocean

• converging tectonic plates

• deposition of sediments by the ocean

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What are the two types of crust?

• continental and oceanic

• ocean and basin

• lower and upper

• thick and thin

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Earthquake epicenters (center of where the earthquakes started) were mapped for a 35 year period in the diagram above. The black dots indicate these epicenters. The black dots appear along what feature on Earth?

• hot spots

• plate boundaries

• rift zones

• sea floor spreading

Multiple Choice

What is the source of energy that drives plate movement?

• the subducton of the sea floor

• the different densities of the oceanic and crustal plates

• convection currents in the asthenosphere

• the friction force between the plates that move past each other

Multiple Choice

The area around the pacific plate where boundaries form is called...

• death ring

• fire zone

• ring of fire

• zone of fire

Multiple Choice

The Theory of Plate Tectonics says that:

Large solid pieces of Earth called Plates make up which layer of the Earth?

• The crust

• The atmosphere

• The inner core

• The mantle

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What is the effect of plates moving?

• volcanoes

• earthquakes

• tornadoes

• both volcanoes and earthquakes

Multiple Select

What is true about the Earth's outer layer?

• it is made of hard, solid rock

• it is made of soft, solid rock

• it is broken in plates

• it is broken in mantle

• it is moving at a slow rate

Multiple Choice

The plates of the Earth moved

• suddenly.

• gradually.

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Which terms describe this plate boundary?

• convergent

• divergent

• mid ocean ridge

• trench

• sinking

Multiple Choice

What patterns can you see on this map?

• Earthquakes happen in similar places.

• Earthquakes and volcanoes happen in similar places on plate boundaries.

• Volcanoes happen in similar places.

• Volcanoes and earthquakes happen in this order: volcano, earthquake, volcano, earthquake, and so on.

Multiple Choice

What happens when two plates are moving toward each other?

• The plates hit each other and break into pieces making sand.

• One plate goes underneath the other plate into the soft rock below.

• The plates push against each other, making the edges bend upward.

• One plate goes underneath the other plate into the ocean below.

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Where will geologists find hard, solid rock?

• neither under continents or oceans, because there is sand and water under both.

• neither under continents or oceans, because there is water under both places.

• only under the continents, but not under the oceans.

• under both continents and oceans, because Earth's outer layer is made of hard, solid rock.

Multiple Choice

The Lystrosaurus fossils can be found in India and South America, which are parts of different plates. This is a land animal that can not swim. What could explain how these fossils got so far apart?

• The plates slowly moved apart as soft solid rock from underneath got added to the edges of the plates over millions of years.

• The plates floated away from each other.

• The plates slowly moved apart as new plates from underneath got added between them over millions of years.

• The plates were sometimes pushed far apart by earthquakes and soft solid rock from underneath got added to the edges of the plates.

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What happens when two plates move apart?

• a new plate from underneath fills in the gap created by the plates moving apart

• sand and dirt fill in the gap created by the plates moving apart

• water fills in the gap created by the plates moving apart

• soft, solid rock from underneath the plates rises up and hardens, adding solid rock to the edges of both plates.

Multiple Choice

Who is the person credited with developing the theory of continental drift?

• Harry Hess

• Galileo

• Alfred Wegener

• Newton

Multiple Choice

This image is of...

• Convergent boundary

• Transform Boundary

• Divergent Boundary

Multiple Choice

According to the continental drift theory, a single, huge continent once existed called

• Pangaea.

• Wegener.

• Panthalassa.

• Euraisa.

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When subduction happens, which plate will go under the other plate?

• the denser one

• the less dense one

• the one with magma

• the one with mountains

Multiple Choice

When two plates converge on land, they form_______.

• mountains

• rivers

• valleys

• lakes

Multiple Select

These two things are often seen at tectonic plate boundaries.

• volcanos

• earthquakes

• erosion

• hurricanes

Multiple Choice

Earthquakes occur near faults because _________.

• One plate pushes the other plate up.

• A portion of the plate gets stuck then suddenly loosens then moves.

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Where are the tectonic plates located?

• Lithosphere

• Aesthenosphere

• Biosphere

• Atmosphere