Chapter 1Plate Tectonics Key Terms

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Can you name the Chapter 1 Key Terms?

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Deep valley that forms along a divergent boundary
The softer layer of the mantle
Deep underwater canyons where the ocean floor subducts
A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of the crust
Convection currents take place in this layer of Earth
Scientist who studied sea-floor spreading (last name only)
Heat transfer between materials that are touching
Type of plate boundary where two plates come together
The transfer of heat through space
Process by which ocean floor sinks beneath a deep-ocean trench and back into the mantle
Theory that states that pieces of Earth's lithosphere are in slow, constant motion, driven by convection currents in the mantle
The part of the core that is solid
True or false: Wegener's hypothesis was immediately accepted.
Break in Earth's crust where rocks have slipped past each other
Scientist who developed the theory of plate tectonics (last name only)
Heat transfer by the movement of currents within a fluid
Supercontinent that used to exist on Earth
Type of plate boundary where two plates move apart
An undersea mountain chain where new ocean floor is produced
True or false: Temperature increases as you go deeper ino Earth.
True or false: Heat always moves from a cooler substance to a warmer substance.
Outermost layer of Earth
The rigid, uppermost part of the mantle
Process that continually adds new material to the ocean floor
True or false: Pressure increases as you go deeper into Earth.
How much mass there is in a volume of a substance
The part of the core that is liquid
Type of plate boundary where two plates slip past each other, moving in opposite directions
Scientist who gathered evidence about continental drift (last name only)

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