Rocks Flashcards
1
Q
What type of rock is formed by sedimentation, compaction and cementation?
A
Sedimentary
2
Q
What type of rocks is formed by heat and pressure?
A
Metamorphic
3
Q
What type of rock is formed by lava or magma cooling?
A
Igneous
4
Q
Do extrusive igneous rocks have small or large crystals?
A
Small
5
Q
Why do extrusive igneous rocks have small crystals?
A
Because it Cools quickly
6
Q
Do intrusive igneous rocks have small or large crystals?
A
Large
7
Q
Why do intrusive igneous rocks have large crystals?
A
Because it cools slowly
8
Q
What do sedimentary rocks contain?
A
Layers, grains and fossils
9
Q
What are metamorphic rocks formed NEAR?
A
Magma
10
Q
Give 2 examples of igneous rocks
A
Granite and basalt
11
Q
Give an example of a metamorphic rock
A
Marble
12
Q
Give an example of a sedimentary rock
A
Sandstone
