Inside Earth

A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust

A plate boundary where two plates move away from each other

A break in earth's crust where masses of rock slip past each other

a deep valley along the ocean floor beneath which oceanic slowly sinks toward mantle

vibrations that travel through Earth carrying the energy released during an earthquake

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

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

The transfer of energy through space

The force exerted on a surface divided by the area over which the force is exerted

The transfer of heat within a material or between materials that are touching

A well-tested concept that explains a wide range of observations

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

The amount of mass in a given space; mass per unit volume

The layer of rock that forms Earths outer surface

A dark, dense, igneous rock with a fine texture, found in oceanic floor

A device that determines the distance of an object under water by recording echoes of sound waves

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

a plate boundry where two plates move toward each other in opposite direction

A layer of molten iron and nickel that surrounds the inner core of Earth

The soft layer of the mantle on which the lithosphere floats

The transfer of heat by movement of fluid

The movement of fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another

A deep valley that forms where two plates move apart

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

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

A usually light-colored igneous rock that is found in continental crust

A dense sphere of solid iron and nickel at the center of Earth