Layers of the Earth and Tectonic Plates Review

The inner core is the deep, solid center of the Earth, primarily composed of iron and nickel, and is extremely hot.

The outer core is a liquid layer surrounding the inner core, composed mainly of iron and nickel, and is responsible for Earth's magnetic field.

The mantle is the thick layer of rock between the crust and the outer core, where convection currents occur.

The lithosphere is the rigid outer shell of the Earth, consisting of the crust and the uppermost part of the mantle.

The asthenosphere is a semi-fluid layer of the mantle beneath the lithosphere, allowing tectonic plates to move.

The mesosphere is the lower part of the mantle, located beneath the asthenosphere, characterized by solid rock that can flow slowly.

Continental drift proposes that continents were once part of a single landmass and have since moved apart.

The theory of plate tectonics explains the movement of Earth's plates and how they interact at their boundaries, leading to geological events.

Tectonic plates are large sections of the Earth's lithosphere that move and interact with one another.

Convection is the process of heat transfer in fluids, causing the movement of material in the mantle and outer core.