5th Grade Inside Earth Chapter 1 Section 3-5

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Can you match the terms from Chapter 1 Section 3-5 with their descriptions?

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a deep valley that forms where two plates move apart
the hypothesis that the continents slowly move across Earth's surface
a plate boundary where two plates move away from each other
a well-tested concept that explains a wide range of observations
a break in Earth's crust where masses of rock slip past each other
the name of the single landmass that broke apart 200 million years ago and gave rise to today's continents
a deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle
a trace of an ancient organism that has been preserved in rock
a plate boundary where two plates move toward each other
an undersea mountain chain where new ocean floor is produced
a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust
the theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle
a plate boundary where two plates move past each other in opposite directions
a device that determines the distance of an object under water by recording echoes of sound waves
the process by which molten material adds new oceanic crust to the ocean floor
the process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary

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