8.9AB Plate Tectonics

Front

What is Plate Tectonics?

Back

The theory that explains the structure and movement of Earth's lithosphere, which is divided into tectonic plates that float on the semi-fluid asthenosphere.

Front

What are the three main types of plate boundaries?

Back

1. Convergent Boundaries: Plates move towards each other. 2. Divergent Boundaries: Plates move apart. 3. Transform Boundaries: Plates slide past each other.

Front

What is a Transform Fault?

Back

A type of fault where two tectonic plates slide past each other horizontally, often causing earthquakes.

Front

What geological feature is formed at a Convergent Boundary?

Back

Mountains, trenches, and volcanic arcs can be formed due to the collision of tectonic plates.

Front

What is an example of a Divergent Boundary?

Back

The Mid-Atlantic Ridge, where the Eurasian and North American plates are moving apart.

Front

What causes earthquakes?

Back

Earthquakes are caused by the sudden release of energy in the Earth's crust due to the movement of tectonic plates.

Front

What is the San Andreas Fault?

Back

A major transform fault in California that marks the boundary between the Pacific Plate and the North American Plate.

Front

What is volcanic activity associated with?

Back

Volcanic activity is often found at convergent and divergent plate boundaries where magma can rise to the surface.

Front

How do tectonic plates move?

Back

Tectonic plates move due to convection currents in the mantle, driven by heat from the Earth's core.

Front

What is subduction?

Back

The process where one tectonic plate moves under another and sinks into the mantle, often forming trenches.