Lab: Mineral and Rock Classification — Unit test

Question 1

Which substance would most likely form sedimentary rock?

Revolt · Accepted Answer

small pebbles

Question 2

Which process begins the formation of sedimentary rock?

Revolt · Accepted Answer

the breakdown of rock into sediment

Question 3

An igneous rock floats because air bubbles became trapped when molten material erupted from an underground volcano. How else can this rock be accurately described?

Revolt · Accepted Answer

extrusive

Question 4

Molten materials cool at different rates. Which property of a mineral does this affect?

Revolt · Accepted Answer

crystal size

Question 5

Which statement best describes the formation of metamorphic rocks?

Revolt · Accepted Answer

Ancient sandstone beaches become buried deep beneath Earth’s surface, where they are exposed to extreme heat and pressure.

Question 6

Which is a common use of minerals?

Revolt · Accepted Answer

toothpaste

Question 7

A geologist finds a metamorphic rock and notices that it has grains that formed in parallel layers. The geologist pries at the rock, and it splits apart along the bands formed by the layers.Which type of rock did the geologist most likely find?

Revolt · Accepted Answer

gneiss

Question 8

Which type of rock has a coarse texture due to slow cooling in magma chambers?

Revolt · Accepted Answer

intrusive

Question 9

Which type of rock is most likely to form because of high heat and pressure?

Revolt · Accepted Answer

metamorphic

Question 10

Which correctly lists the three agents that must be present for cementation to occur?

Revolt · Accepted Answer

water, minerals, sediment

Lab: Mineral and Rock Classification — Unit test Answers

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