Layers Of The Earth And Plate Tectonics Question Preview (ID: 50037)


6.E.2.1 And 6.E.2.2. TEACHERS: click here for quick copy question ID numbers.

1. The earth is composed mainly of
a) water
b) iron
c) metals
d) rock

_________ of the Earth's surface is covered by water
a) 60%
b) 75%
c) 85%
d) 55%

Earth’s inner core is composed mainly of:
a) molten rock
b) solid iron and nickel
c) heated gases
d) rigid rock

The rotational motion of the Earth creates a dynamo effect where a force field is generated
a) true
b) false
c)
d)

Tectonic plates:
a) move very slowly
b) sometimes press against or pull away from each other
c) sometimes scrape against each other
d) all of the above

Earth’s outer layer is called the ________ :
a) shell
b) outer plate
c) mesosphere
d) crust

Mountains form where tectonic plates collide
a) true
b) false
c)
d)

Volcanic activity is related to tectonic plate movemen
a) true
b) false
c)
d)

Why do earthquakes occur near the San Andreas fault?
a) One plate slowly pushes the other plate up.
b) A trench is created as one plate slides under the other plate.
c) Portions of the plates get stuck and then suddenly loosen and move
d) One plate pushes hard enough to reverse the motion of the other plate

Which layer of Earth is divided into plates?
a) mantle
b) inner core
c) crust
d) outer core

Hot, molten rock deep below Earth’s surface is called:
a) lava
b) parent rock
c) viscous rock
d) magma

The solid outer layer of the Earth that consists of the crust and the rigid upper layer of the mantle is called the:
a) crust
b) atmosphere
c) asthenosphere
d) lithosphere

Which layer of the earth has convective currents?
a) crust
b) mantle
c) outer core
d) inner core

German scientist Alfred Wegener developed the hypothesis of:
a) seismology
b) volcanism
c) continental drift
d) oceanic drift

The Ring of Fire, a region with many active volcanoes, circles which ocean?
a) Atlantic
b) Pacific
c) Arctic
d) Indian

Which process best EXPLAINS the driving force behind tectonic plate movement?
a) viscosity
b) sea-floor spreading
c) seismology
d) continental drift

What causes the tectonic plates to move?
a) convection currents in the mantle
b) the dynamo effect created in the core
c) electrical currents produced in the core
d) solar flares

At a subduction zone, which plate would move down into the mantle?
a) continental plate
b) oceanic plate
c)
d)

Oceanic plates are thicker than continental plates
a) true
b) false
c)
d)

Mountains form where tectonic plates collide
a) true
b) false
c)
d)

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