Plate Tectonics and Earth's Layers

Front

What is continental drift?

Back

The theory that continents have moved over geological time and were once joined together in a single landmass called Pangaea.

Front

Who proposed the theory of continental drift?

Back

Alfred Wegener.

Front

What is Pangaea?

Back

A supercontinent that existed during the late Paleozoic and early Mesozoic eras, where all continents were joined together.

Front

What are the Earth's layers?

Back

The Earth is composed of four main layers: inner core, outer core, mantle, and crust.

Front

Which layer of the Earth is the densest?

Back

The inner core.

Front

What is the correct order of Earth's layers from the inside out?

Back

Inner core, outer core, mantle, crust.

Front

What is a tectonic boundary?

Back

A region where two tectonic plates meet, which can be convergent, divergent, or transform.

Front

What is a convergent boundary?

Back

A tectonic boundary where two plates collide, often causing mountains or earthquakes.

Front

What is a divergent boundary?

Back

A tectonic boundary where two plates move apart, often creating new crust as magma rises.

Front

What is a transform boundary?

Back

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