Lab: Mineral and Rock Classification — Unit test

Question 1

What is magma?

Revolt · Accepted Answer

molten rock below Earth’s surface

Question 2

Which two processes are destructive forces that occur during sedimentary rock formation?

Revolt · Accepted Answer

weathering and erosion

Question 3

This is Mohs hardness scale.

Revolt · Accepted Answer

corundum, quartz, calcite, gypsum

Question 4

Which statement is an example of an observation a scientist would make to classify a rock?

Revolt · Accepted Answer

A rock is larger than other rocks.

Question 5

Which characteristic is used to classify metamorphic rocks as foliated or non-foliated?

Revolt · Accepted Answer

arrangement of grains

Question 6

Study the image of this rock.

Revolt · Accepted Answer

jagged

Question 7

Which is one source of the sediments that form sedimentary rocks?

Revolt · Accepted Answer

materials dissolved in solutions

Question 8

Which phrase best describes igneous rocks?

Revolt · Accepted Answer

form when lava and magma cool

Question 9

What is the relationship between the rate at which molten material cools and a mineral's crystals?

Revolt · Accepted Answer

The slower the cooling, the larger the crystals.

Question 10

Which type of metamorphic rock has randomly arranged grains and does not split into layers?

Revolt · Accepted Answer

non-foliated

Lab: Mineral and Rock Classification — Unit test Answers