Unit 7 Review: Rocks

Igneous rocks that form when lava cools quickly on Earth's surface are classified as

• intrusive

• extrusive

• reclusive

• obtrusive

Igneous rocks that form when magma cools slowly beneath Earth's surface are classified as

• intrusive

• extrusive

• reclusive

• obtrusive

Gneiss is an example of a ________ metamorphic rock due to its pattern of mineral bands.

(a)  

• foliated
• nonfoliated
• mafic
• felsic

Which of these is a common use for ALL types of rock?

• building materials

• jewelry

• making steel

• cooking food

When all the grains in a rock are large and easy to see, the rock is described as

• foliated

• fine grained

• coarse grained

• nonbanded

Which of these are characteristics geologists use to classify rocks? (Choose 3)

• color

• texture

• composition

• size

• shape

A coarse-grained, intrusive igneous rock commonly used as a building material is

• sandstone

• marble

• slate

• granite

The process by which sediment settles out of the water or wind carrying it is

• compaction

• cementation

• deposition

• erosion

Which of these correctly lists the steps in the process that forms sedimentary rock?

• compaction, cementation, deposition, weathering/erosion

• weathering/erosion, deposition, cementation, compaction

• weathering/erosion, deposition, compaction, cementation

• deposition, weathering/erosion, cementation, compaction

Heat and pressure deep beneath Earth’s surface can change any rock into

• chemical rock.

• gemstones.

• metamorphic rock.

• sedimentary rock.