Unit Test - GEOLOGY

Front

What type of rock is formed from the transformation of existing rock under heat and pressure without melting?

Back

Metamorphic rock.

Front

What are lahars?

Back

Mudflows mixed with volcanic debris.

Front

What occurs in a convection current in magma?

Back

Hot magma rises, cold magma lowers.

Front

What scale measures the magnitude or size of an earthquake?

Back

Richter scale.

Front

What should you do if volcanic ash starts to fall in your area?

Back

Stay indoors, close windows, and avoid driving.

Front

What type of rock is formed from the cooling and solidification of magma or lava?

Back

Igneous rock.

Front

What is the process called when sediment is compacted and cemented to form rock?

Back

Lithification.

Front

What is the term for the point on the Earth's surface directly above the focus of an earthquake?

Back

Epicenter.

Front

What type of volcanic eruption is characterized by explosive outbursts of ash and gas?

Back

Plinian eruption.

Front

What is the term for the molten rock beneath the Earth's surface?

Back

Magma.