TEKS 8.9B-relate plate tectonics to crustal features formed

Front

What is plate tectonics?

Back

The theory that explains the movement of the 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

Divergent, Convergent, and Transform boundaries.

Front

What occurs at a divergent boundary?

Back

Tectonic plates move apart, leading to the formation of new crust, often seen at mid-ocean ridges.

Front

What happens at a convergent boundary?

Back

Tectonic plates collide, which can result in mountain formation, earthquakes, and volcanic activity.

Front

What is a transform boundary?

Back

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

Front

What is subduction?

Back

The process where one tectonic plate moves under another and sinks into the mantle.

Front

What geological features are commonly formed at convergent boundaries?

Back

Mountains, deep ocean trenches, and volcanic arcs.

Front

What is an island arc?

Back

A chain of volcanic islands formed at a convergent boundary between two oceanic plates.

Front

What is the Ring of Fire?

Back

A major area in the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur, due to tectonic plate movements.

Front

What evidence did Alfred Wegener use to support his theory of continental drift?

Back

The fit of coastlines, similar fossils found on different continents, and geological similarities.