chapter 8 lesson 2-3 science Flashcards
0
Q
Volcanic glass
A
Is a rock that forms when lava cools to quickly to form crystals such as the obsidian
1
Q
Extrusive rock
A
When a volcanic material erupts and cools and crystallizes on earths surface it forms a type of igneous rock
2
Q
Intrusive rock
A
Igneous rocks that form as magma cools underground
3
Q
Compaction
A
The weight from the layers of sediment forces out fluids and decrease the spacing during the process
4
Q
Cementation
A
When minerals dissolve in water between sediment grains the process
5
Q
Clastic rock
A
Sedimentary rocks that are made up of broken pieces of minerals
6
Q
Chemical rocks
A
Forms when minerals crystallized
7
Q
Biochemical rock
A
Is a sedimentary rock that was foRmed organisms or contains the remains of organisms
