Earth and Space Ch. 1-3 Test

Front

What determines the texture of igneous rocks?

Back

The rate of cooling of the molten rock determines the texture of igneous rocks.

Front

What is the ultimate step in the metallurgy process?

Back

Shaping is the ultimate step in the metallurgy process.

Front

What is the term for the line of powder left by a mineral when rubbed across unglazed porcelain?

Back

Streak.

Front

What type of reasoning is used when concluding that crystals grow faster in warmer temperatures based on experimental observations?

Back

Inductive reasoning.

Front

Which scale is used to rate minerals from softest to hardest?

Back

Mohs scale.

Front

What is the definition of igneous rock?

Back

Igneous rock is formed from the solidification of molten rock (magma or lava).

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive igneous rocks form from magma that cools slowly beneath the Earth's surface, while extrusive igneous rocks form from lava that cools quickly on the surface.

Front

What is metallurgy?

Back

Metallurgy is the science and technology of extracting metals from their ores and modifying the metals for use.

Front

What is the significance of the Mohs scale in geology?

Back

The Mohs scale is significant because it provides a relative scale for measuring the hardness of minerals.

Front

What is the process of refining in metallurgy?

Back

Refining is the process of purifying metal from its ore.