Chapter 8 Lessons 2&3

Question 0

Volcanic glass

Answer 0

Rock that forms when lava cools too quickly to crystals

Question 1

Extrusive rock

Answer 1

When volcanic material erupts and cools and crystallizes on Earth’s surface, it forms a type of igneous rock

Question 2

intrusive rocks

Answer 2

Igneous rocks that form as magma cools unground

Question 3

Compaction

Answer 3

The weight from the layers of sediment forces out fluids and decreases the space between grains during a process

Question 4

Cemetation

Answer 4

When minerals dissolved in water crystallize between sediment grains

Question 5

Clastic rock

Answer 5

Sedimentary rocks that are made up of broken pieces of minerals and rock fragments

Question 6

Clasts

Answer 6

These are the broken pieces and fragments

Question 7

Chemical rocks

Answer 7

Form when minerals crystallize directly from water

Question 8

Biochemical rock

Answer 8

Sedimentary rock that was formed by organisms or contains the remains or organisms