Plate motion

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 tectonic plates?

Back

Large sections of the Earth's lithosphere that move and interact with each other, causing geological activity.

Front

What is a convergent plate boundary?

Back

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

Front

What is a divergent plate boundary?

Back

A boundary where two tectonic plates move away from each other, leading to the formation of new crust.

Front

What is a transform plate boundary?

Back

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

Front

What evidence supports the theory of continental drift?

Back

Similar rock types and fossils found on continents that are now separated, indicating they were once connected.

Front

Where was North America located during the Ordovician era?

Back

North America was located south of the equator during the Ordovician era, approximately 450 million years ago.

Front

What type of plate boundary is found on the east coast of South America?

Back

The east coast of South America is characterized by a convergent plate boundary.

Front

What type of plate boundary is found on the west coast of California?

Back

The west coast of California features a transform plate boundary.

Front

Which mountain ranges are considered continuous from continent to continent?

Back

The Appalachian and Caledonian mountain ranges appear to be continuous across continents.