Earth/Space Weather, Rocks & Minerals Semester Exam Review

Front

What is the pressure at the interface between Earth's outer core and inner core?

Back

3.1 million atmosphere.

Front

How does the density of basaltic oceanic crust compare to granitic continental crust?

Back

Basaltic oceanic crust is thinner and more dense than granitic continental crust.

Front

What instrument is used to measure air pressure?

Back

Barometer.

Front

What characteristic of a limestone cobble remains constant during extensive abrasion?

Back

Composition.

Front

What is the medium-grain-sized metamorphic rock composed mostly of the same mineral as limestone?

Back

Marble.

Front

Define the term 'metamorphic rock'.

Back

A type of rock that has been changed from its original form due to heat, pressure, or chemically active fluids.

Front

What is the primary mineral found in limestone?

Back

Calcite.

Front

Explain the rock cycle.

Back

The rock cycle is a continuous process where rocks are formed, broken down, and reformed through geological processes.

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 are the three main types of rocks?

Back

Igneous, sedimentary, and metamorphic.