Science Unit 1 Plate Tectonics and Rock Cycle

Which of the following is NOT true about the role of tectonic forces play in the rock cycle

• When plates pull apart, rocks melt, and magma forms igneous rocks.

• When plates crash together, tocks are buried and form metamorphic rocks

• When plates slide over and under each other, the heat and pressure form igneous rock

• When rocks push upward and form mountains, the erosion of the mountains can produce sediment.

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Where are most volcanoes and earthquakes located?

• in the middle of tectonic plates

• in the middle of continents

• along the edges of tectonic plates

• in the tropics

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Areas near fault lines often changed by

• earthquakes

• tornadoes

• winsdstorms

• infestations

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Which of the following features are found at divergent plate boundaries?

• ocean trenches and abyssal plains

• mid-ocean ridges and rift valleys

• impact craters and alluvial fans

• continental shelves and submarine canyons

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For a sedimentary or metamorphic rock to become an igneous rock, it must first _____________.

• melt

• weather

• erode

• freeze

Which of the following is a true statement about the rock cycle?

• Heat, pressure, cooling, weathering, erosion and deposition change rock

• The formation of rock within the cycle ends after metamorphic rocks form

• Weathering occurs in igneous rock but never in sedimentary or metamorphic

• Sedimentary rock can revert to metamorphic rock but never to igneous rock

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The movement of tectonic plates can produce __________.

• glaciers

• earthquakes

• impact craters

• fossils

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What is Pangaea?

• the process by which tectonic plates move around the Earth

• the name of the scientist who first discovered plate tectonics

• the name of the ancient supercontinent

• a type of thick sticky lava

Along certain plate boundaries magma comes to Earth's surface to form new rock. This happens because of _______________.

• Earth's Magnetic field

• rising convection currents in the mantle

• the rotation of Earth's core

• sinking convection currents in the mantle

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Earthquakes release a large amount of energy in the Earth's crust. Where does this energy come from?

• intense radiation from the Sun

• strong water currents in the ocean

• the gravitational attraction of the moon

• the movement of tectonic plates

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