Continental Drift & Plate Tectonics

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What is Continental Drift?

Back

The theory that continents were once part of a single landmass called Pangaea and have since drifted apart.

Front

Who proposed the theory of Continental Drift?

Back

Alfred Wegener.

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What is Plate Tectonics?

Back

The scientific theory that describes the large-scale movements of Earth's lithosphere, which is divided into tectonic plates.

Front

What is a Divergent Boundary?

Back

A tectonic boundary where two plates move away from each other, often resulting in seafloor spreading.

Front

What is a Convergent Boundary?

Back

A tectonic boundary where two plates move towards each other, often causing one plate to be forced below another.

Front

What is a Transform Boundary?

Back

A tectonic boundary where two plates slide past each other horizontally, often causing earthquakes.

Front

What is Seafloor Spreading?

Back

The process by which new oceanic crust is formed at a divergent boundary as magma rises to the surface.

Front

What is a Subduction Zone?

Back

A region where one tectonic plate moves under another plate, often leading to volcanic activity.

Front

What geological feature is formed at a Convergent Boundary?

Back

Mountains, trenches, and volcanic arcs.

Front

What geological feature is formed at a Divergent Boundary?

Back

Mid-ocean ridges and rift valleys.