Chapter 1Plate Tectonics Key Terms

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Can you name the Chapter 1 Key Terms?

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

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