Earth and Space Ch. 1-3 Test

Front

What type of metamorphism occurs when rocks are baked by contact with hot magma?

Back

Contact metamorphism.

Front

What mining technique is used to remove pillars while ensuring the walls and ceiling remain stable?

Back

Retreat mining.

Front

What are the large chunks of solid volcanic ejecta that solidify before being ejected from a volcano called?

Back

Volcanic block.

Front

What scale is used to rate minerals from the softest to the hardest?

Back

Mohs scale.

Front

What is the specific gravity of a material if a 1 cm³ sample of water has a mass of 1 g and a 5 cm³ sample of sylvite has a mass of 10 g?

Back

2.

Front

Define metamorphism in geology.

Back

Metamorphism is the process by which rocks are altered in mineralogy, texture, and chemical composition due to changes in temperature, pressure, and/or chemically active fluids.

Front

What is the difference between contact and regional metamorphism?

Back

Contact metamorphism occurs near a heat source, like magma, while regional metamorphism occurs over large areas under high pressure and temperature.

Front

What is a volcanic bomb?

Back

A volcanic bomb is a large chunk of molten rock that is ejected from a volcano and solidifies in the air.

Front

What is the significance of the Mohs scale in mineralogy?

Back

The Mohs scale is used to measure the hardness of minerals, helping to identify and classify them.

Front

Explain the concept of specific gravity.

Back

Specific gravity is the ratio of the density of a substance to the density of a reference substance, typically water.