Midterm Review (Rocks - Weathering)

Rocks are classified according to

• how they formed.
• when they formed.
• the minerals that make them up.
• how old they are.

If granite undergoes high temperatures and high pressures at depth within Earth, what type of
rock will be formed? Assume that the granite does not melt.

• Metamorphic
• Sedimentary
• Igneous
• Lava

A rock that forms when magma hardens beneath Earth’s surface is called an ____.

• Intrusive Igneous Rock
• Clastic Sedimentary Rock
• Foliated Metamorphic Rock
• Extrusive Igneous Rock

A rock that forms from cooling lava is classified as an ____.

• intrusive igneous rock
• extrusive igneous rock
• extrusive metamorphic rock
• intrusive volcanic rock

As the rate of cooling of igneous rocks decreases, the size of the crystals that form ____.

• increases
• decreases
• stays the same
• melts

According to the diagram, which of the following is responsible for the formation of bituminous coal?

• weathering and erosion
• cooling of magma
• compaction of plant materials
• recrystallization from high temperatures and high pressures

According to the diagram, which of the following rocks is composed of fine to coarse crystalline Halite (NaCl)?

• Rock Salt
• Rock Gypsum
• Bituminous Coal
• Conglomerate

Fossils are only found in ____.

• Sedimentary Rocks
• Metamorphic Rocks
• Igneous Rocks

What rock-forming process occurs in an area of mountain building?

• regional metamorphism
• biochemical sedimentation
• contact metamorphism
• deposition

The texture of an igneous rock __________.

• is controlled by the composition of magma
• determines the color of the rock
• is caused by leaching
• records the rock’s cooling history