A scientist who studies the forces that make and shape planet Earth.
A vibration that travels through Earth, during an earthquake.
Layer of rock that forms the Earth's outer surface
A rigid layer made up of the uppermost part of the mantle and the crust
The soft layer of the mantle on which the lithosphere floats
Layer of molten iron and nickel that sourrounds the inner core of Earth
A dense sphere of solid iron and nickel in the center of the earth
The transfer of energy through empty space
The transfer of heat by direct contact of particles of matter.
The transfer of heat by movement of a heated fluid.
The amount of mass in a given space, mass per unit of Volume
The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary
deep ocean trench
A deep valley along the ocean floor through which oceanic crust slowly sinks towards the mantle.
The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle.
A plate boundary where two plates move past each other in opposite directions.
A plate boundary where two plates move away form each other.
A deep valley that forms where two plates move apart.
A plate boundary where two plates move toward each other
The layer of hot, solid material between Earth's crust and the core.