Chapter 1Plate Tectonics Key Terms

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Can you name the Chapter 1 Key Terms?

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

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