U2 Topic 2 - Rock Cycle & Igneous Rocks

Which statement best describes a general property of rocks?

• Most rocks have a number of minerals in common

• Most rocks are composed of a single mineral

• All rocks contain fossils.

• All rocks contain minerals formed by compression and cementation

Nine rock samples were classified into three groups as shown in the table. This classification system was most likely based on the

• age of the minerals in the rock

• size of the crystals in the rock

• way in which the rock formed

• color of the rock

Which two processes result in the formation of igneous rocks?

• solidification and evaporation

• melting and solidification

• crystalization and cementation

• compression and precipitation

According to the Reference Tables, which property would be most useful for identifying igneous rocks?

• kind of cement

• mineral composition

• number of mineral present

• types of fossils present

The diagram shows a sample of rock material that contains coarse-grained intergrown crystals of several minerals [Mineral crystals are shown actual size] This rock sample should be identified as

• rhyolite

• granite

• scoria

• basalt

Which granite sample most likely formed from magma that cooled and solidified at the slowest rate?

• 
• 
• 
• 

Base your answer on the diagram which represents a geologic cross section. In which location is a geologist most likely to find rock composed of intergrown crystals?

• A

• B

• C

• D

Base your answer on the diagram which represents a geologic cross section. The rock at B most likely contains

• quartz only

• quartz and potassiium feldspar, only

• potassium feldspar, pyroxene, and olivine

• plagioclase feldspar, pyroxene, and olivine

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Base your answer on the diagram which represents a geologic cross section. Which rock is most likely organic in origin?

• limestone

• sandstone

• basalt

• conglomerate

Tags

NGSS.MS-ESS2-3

Base your answer on the diagram which represents a geologic cross section. At which location would quartzite most likely be found?

• A

• B

• C

• D

Tags

NGSS.MS-ESS1-4