Plate Tectonics Vocabulary

Theory explaining how the Earth's surface is broken into fragments or pieces:

Number 4 on the diagram is:

The area the surrounds the Pacific plate that has many convergent boundaries and volcanoes:

This is the process by which new oceanic crust is made:

An area where an unusual amount of mantle heat pierces holes in the middle of a tectonic plate:

A piece of the Earth's crust/mantle:

This is where two plates meet and one moves under the other due to density differences:

The hard, rigid, outer layer of the Earth composed of the crust and part of the upper mantle:

Where two plates move along side of each other:

Where two plates meet and move apart from one another:

Number 2 on the diagram is:

Where two plates meet and move towards each other:

Theory that explains how the pieces of the Earth's crust move around slowly, over time:

The more flexible, fluid layer of the Earth below the lithosphere; where convection occurs.