name of single land mass that broke apart 225 million years ago

theory that pieces of Earth's lithosphere are in constant motion driven by convection currents in the mantle

soft layer of the mantle on which the lithosphere floats

system that determines distance of an object under water by recording echoes of sound waves

layer of a hot, solid material between Earth's crust and core

transfer of heat from ne substnace to another by direct contact of particle matters

movement of fluid, caused by differences in temperature, that transfer heat from part liquid to another

transfer of energy through deep empty space by electromagnetic waves

process by which molten material adds new oceanic crust to the ocean floor

undersea mountain chain where new ocean floor is produced; a divergent boundary

rigid layer made up of the uppermost part of the mantle and crust

plate boundary where two plates move toward eachother

transfer of heat by movement of a fluid

hypothesis that continents slowly move across the Earth's surface

plate boundary where two plates move past each other in opposite directions

layer of molten iron and nickel that surrounds the inner core

dense sphere of solid nickel and iron in the center of the Earth

plate boundary where two plates move away from each other

process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at convergent boundary

layer of rock that forms Earth's outer surface

the measure of how hot or cold something is

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Earth's Layers

Term	Definition
Pangea	name of single land mass that broke apart 225 million years ago
plate tectonics	theory that pieces of Earth's lithosphere are in constant motion driven by convection currents in the mantle
asthenosphere	soft layer of the mantle on which the lithosphere floats
sonar	system that determines distance of an object under water by recording echoes of sound waves
mantle	layer of a hot, solid material between Earth's crust and core
conduction	transfer of heat from ne substnace to another by direct contact of particle matters
convection currents	movement of fluid, caused by differences in temperature, that transfer heat from part liquid to another
radiation	transfer of energy through deep empty space by electromagnetic waves
sea-floor spreading	process by which molten material adds new oceanic crust to the ocean floor
MOR	undersea mountain chain where new ocean floor is produced; a divergent boundary
lithosphere	rigid layer made up of the uppermost part of the mantle and crust
convergent boundary	plate boundary where two plates move toward eachother
convection	transfer of heat by movement of a fluid
continental drift	hypothesis that continents slowly move across the Earth's surface
transform boundary	plate boundary where two plates move past each other in opposite directions
outer core	layer of molten iron and nickel that surrounds the inner core
inner core	dense sphere of solid nickel and iron in the center of the Earth
divergent boundary	plate boundary where two plates move away from each other
subduction	process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at convergent boundary
crust	layer of rock that forms Earth's outer surface
temperature	the measure of how hot or cold something is

Created by: cj_ritter

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