SSA Review (Earth's Structures: Big Idea 6)

Front

What is deposition?

Back

Deposition is a geological process where materials are added to a landform or land mass, often occurring when a glacier melts.

Front

What causes deposition to occur?

Back

Deposition most likely occurs when a glacier melts.

Front

What are convection currents?

Back

Convection currents are movements within a fluid (like the mantle) where heated material rises and cooler material sinks, causing tectonic activity.

Front

What happens in a convection current?

Back

In a convection current, heated material rises and cooler material sinks.

Front

What are the layers of the Earth?

Back

Earth is made up of several layers: the crust, mantle, outer core, and inner core, each with different characteristics.

Front

What is the outer core made of?

Back

The outer core is made up of very dense, liquid metal.

Front

Why are there more earthquakes on the west coast of the United States?

Back

The west coast has more convergent boundaries than the rest of the country, leading to a higher number of earthquakes.

Front

What is a convergent boundary?

Back

A convergent boundary is where two tectonic plates move toward each other, often causing earthquakes and volcanic activity.

Front

What landform can protect inland areas from floods?

Back

Dunes can protect inland areas from floods and storm surges.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural forces such as wind or water.