Earth's Interior

Front

What happens to the age of rock as you increase your distance from the mid-ocean ridge?

Back

The age of rock increases.

Front

What type of plate boundary is the mid-ocean ridge associated with?

Back

Divergent boundary.

Front

Which is thicker, continental crust or oceanic crust?

Back

Continental crust is thicker.

Front

How old is the Earth estimated to be?

Back

4.5 billion years.

Front

What is the process called when one tectonic plate moves under another?

Back

Subduction.

Front

What is the Earth's outer layer called?

Back

The lithosphere.

Front

What are tectonic plates?

Back

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

Front

What is the mantle?

Back

The layer of the Earth between the crust and the core, composed of semi-solid rock.

Front

What is the core of the Earth made of?

Back

The core is primarily made of iron and nickel.

Front

What is convection in the context of Earth's interior?

Back

The process of heat transfer in fluids, causing movement in the mantle.