Igneous Rocks Flashcards
1
Q
Igneous Rock
A
Rock formed by solidification/crystallization of a cooling magma
2
Q
Magma
A
Hot molten rock that is beneath Earth’s surface
3
Q
Plutonic igneous rock
A
A rock formed extremely slowly from magma, often very large
(ex. Granite)
4
Q
Lava
A
Magma that flows on Earth’s surface
5
Q
Volcanic igneous rock
A
Rock formed at or close to Earth’s surface
(ex. basalt)
6
Q
Volcanic Glass
A
Clear, noncrystalline solid formed when magma/lava cools very fast
(ex. obsidian)
