Plate Tectonics

Front

What are breaks in Earth's crust where rocks have slipped past each other?

Back

Faults are fractures in the Earth's crust where blocks of rock have moved relative to each other.

Front

What evidence was NOT used by Wegener as proof of continental drift?

Back

Wegener did not use erosion as evidence for continental drift.

Front

What is a plate boundary where two plates move toward each other?

Back

A convergent boundary is where two tectonic plates move toward each other, often causing one plate to be forced beneath the other.

Front

Identify the landform that is formed at divergent boundaries.

Back

Mid-ocean ridges are landforms created at divergent boundaries where tectonic plates move apart.

Front

What type of boundary is characterized by plates sliding past each other?

Back

A transform boundary is where two tectonic plates slide past one another horizontally.

Front

What is the theory that explains the movement of Earth's plates?

Back

The theory of plate tectonics explains the movement of the Earth's lithosphere, which is divided into tectonic plates.

Front

What geological features are commonly found at convergent boundaries?

Back

Mountains, deep ocean trenches, and volcanic arcs are commonly found at convergent boundaries.

Front

What is the process called when one tectonic plate is forced under another?

Back

Subduction is the process where one tectonic plate is forced beneath another at convergent boundaries.

Front

What type of boundary is formed when two tectonic plates move apart?

Back

A divergent boundary is formed when two tectonic plates move away from each other.

Front

What is the significance of the mid-ocean ridge in plate tectonics?

Back

The mid-ocean ridge is significant as it is a site of seafloor spreading, where new oceanic crust is formed.