Classifying Rocks

Question 1

Geologists look at the mineral______,______and_____ of rock which can contain a mixture of_________ or only a single______

Answer 1

Geologists look at the mineral COMPOSITION, COLOR, and TEXTURE of a rock, which can contain a mixture of MINERALS AND OTHER MATERIALS or only a single MINERAL

Question 2

granite

Answer 2

light colored rock having high silica content

Question 3

basalt

Answer 3

dark colored rock that is low in silica

Question 4

Igneous

Answer 4

created when magma or lava cools and crystallizes

Question 5

sedimentary

Answer 5

rock that forms when rocks are broken down into smaller pieces or dissolved in water. Rock particles and the remains of plants and animals are pressed and cemented together

Question 6

metamorphic

Answer 6

forms when existing rock is changed by heat, pressure or chemical reactions

Question 7

rock cycle

Answer 7

a series of processes that changes one type of rock into another type of rock