Earth Science Unit 4

Front

What is Uniformitarianism?

Back

The principle that the same geological processes that operate today also operated in the past, suggesting that the Earth is shaped by continuous and uniform processes.

Front

What are Surface Waves?

Back

Earthquake waves that travel along the surface of the Earth, causing the most damage during an earthquake.

Front

What causes Earthquakes?

Back

Vibrations or movements caused by rocks shifting along a fault line.

Front

What is Magma?

Back

Liquid rock located beneath the Earth's surface.

Front

What are Body Waves?

Back

Earthquake waves that travel through the interior of the Earth.

Front

What is the Law of Superposition?

Back

A geological principle that states in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What is the Focus of an Earthquake?

Back

The point within the Earth where an earthquake originates.

Front

What is the Epicenter of an Earthquake?

Back

The point on the Earth's surface directly above the focus of an earthquake.

Front

What are Seismic Waves?

Back

Waves of energy that travel through the Earth, typically caused by earthquakes.

Front

What is a Fault?

Back

A fracture or zone of fractures between two blocks of rock, which can cause earthquakes.