Sections of the Earth's crust that move due to convection currents.

A German scientist who proposed the theory of continental drift

term for the super continent which contained all the plates together

The thin and solid outermost layer of the Earth above the mantle

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

The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations

The process by which new oceanic crust forms as magma rises toward the surface and solidifies.

A tectonic plate boundary where two plates collide, come together, or crash into each other.

The boundary between two tectonic plates that are moving away from each other

A valley formed at a divergent boundary by the separation of tectonic plates consisting of continental crust.

The process in which two plates collide and the denser oceanic crust sinks beneath the continental crust.

The continuous heating and cooling of magma within the mantle that acts as a conveyor and moves Earth's plates.

Deep valley in the ocean floor that forms along a subduction zone.

An underwater mountain range made at divergent plate boundaries.

The portion of the earth's crust that primarily contains granite, is less dense than oceanic crust, and is 20-50 km thick.

Thinner, more dense, younger crust that makes up the ocean floor.

The layer of hot molten material between Earth's crust and core.

Formed at a convergent boundary where subduction occurs with oceanic crust.

Formed at a convergent boundary when two plates collide and fold.

The transfer of heat through the movement of liquid or gas.

Many plant and animal fossils have been found on several continents separated by large distances.

Alfred Wegener's line of evidence showing that fossils of tropical plants are found in currently cold regions and glacier evidence is found in places that are currently too warm.

-South America and Africa appear to fit together

The part of the mantle where convection occurs

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