Rocks and Minerals Review

In the rock cycle, the process by which igneous rock changes to a sedimentary rock must begin with _____________.

• erosion
• weathering
• compaction
• cementation

The heat that changes a rock into metamorphic rock comes from ________________.

• sun
• the heat of the mantle/core
• movement of the crust
• Both the heat from the core and movement of the crust

How can sedimentary rock change into metamorphic rock?

• erosion and deposition
• melting and crystallization
• heat and pressure
• compacting and cementation

What is the MOST COMMON intrusive igneous rock?

• granite
• basalt
• obsidian
• pumice

What is the MOST COMMON extrusive igneous rock?

• granite
• basalt
• obsidian
• pumice

The small particles of rock or the remains of living things that make up sedimentary rock are called cement.

• true
• false

Metamorphic rocks form deep beneath the Earth's surface.

• true
• false

A metamorphic rock in which the grains line up in parallel bands is a ___________.

• clastic rock
• foliated rock
• nonclastic rock
• nonfolliated rock

The diagram below shows some of the layers of rock found in the Grand Canyon. Scientists find these layers useful for studying fossils. What type of rock is shown?

• metamorphic rock
• igneous rock
• sedimentary rock
• extrusive rock

Various processes are involved in the formation of different types of rocks. The diagram below illustrates changes in rock such as granite (igneous) forms gneiss (metamorphic). In addition to heat, which of the following changes granite into gneiss?

• acid
• water

• pressure
• erosion