L2 Plate Boundary Practice

Front

The point where one plate slides beneath another is known as the _____________.

Back

subduction zone

Front

What evidence did Wegener use in his theory?

Back

Fossils of land mammals found on different continents now separated by oceans, glacier scars and other climate evidence of continents moving from a different location, mountain ranges and rocks line up across continents.

Front

Which type of crust is the most dense and will always subduct?

Back

Oceanic

Front

What name is given to the underwater mountain ridges that form from the creation of new crust?

Back

Mid-Ocean Ridges

Front

Theory that the crust is broken into large pieces called tectonic plates that slowly move due to convection in the asthenosphere.

Back

Plate Tectonics

Front

What is the lithosphere?

Back

The rigid outer layer of the Earth, consisting of the crust and upper mantle.

Front

What is the asthenosphere?

Back

The semi-fluid layer of the mantle beneath the lithosphere that allows tectonic plates to move.

Front

What is a transform boundary?

Back

A tectonic plate boundary where two plates slide past each other horizontally.

Front

What is a convergent boundary?

Back

A tectonic plate boundary where two plates collide, often forming mountains or causing subduction.

Front

What is a divergent boundary?

Back

A tectonic plate boundary where two plates move away from each other, often creating new crust.