Classifying Rocks

Question 1

20 minerals that make up most of the rocks of Earth’s crust

Answer 1

Rock-forming minerals

Question 2

Provides clues to the rocks mineral composition

Answer 2

color

Question 3

light colored rocks having silica content

Answer 3

Granite

Question 4

Dark colored rock that is low in silica

Answer 4

Basalt

Question 5

The look and feel of the rocks surface which is made up of particles of minerals or other fine rocks called gems

Answer 5

Texture

Question 6

Created when magma or lava cools and crystallizes

Answer 6

Igneous

Question 7

Rock material that forms where rocks are broken down into smaller pieces or dissolved in water as rocks erode or the remains of plants and animals are pressed and compounded together

Answer 7

Sedimentary

Question 8

Forms when existing rock change by heat pressure or chemical reactions

Answer 8

Metamorphic

Question 9

Sense of processes that change one type of rock into another type of rock

Answer 9

Rock cycle

Question 10

What are the three main groups of rocks

Answer 10

Igneous, Sedimentary, Metamorphic