Igneous Rocks
What are the two types of igneous rocks?
Intrusive and extrusive
What is sediment?
Broken down pieces of rock
How are metamorphic rocks formed?
Heat and pressure
What test shows what color powder is left behind after a mineral is scratched?
Streak test
What type of rock contains large crystals?
Igneous Rock
"Ignis" is Latin for what word?
Fire
What is the first step in the process of how sedimentary rocks are formed?
Weathering
What are the two types of metamorphic rocks?
Foliated and non-foliated
What is the hardest mineral on the MOHS scale?
Diamond
What type of rock may contain evidence of past life?
Sedimentary
Is intrusive above or under the ground?
Under the ground
Sediments stick together like what?
Puzzle pieces
What does "Meta" mean?
Change
What is the softest mineral on the MOHS scale?
Talc
What type of rock changes by intense heat/pressure?
Metamorphic
What is an extrusive rock?
Rocks that form when lava cools and hardens outside of earth's crust.
What does compaction mean?
The process of sediment being pressed together.
What does "Morph" mean?
Shape/form
What process test how hard a mineral can resist being scratched?
Hardness
What type of rock comes from liquid rock material?
Igneous
What do you need to turn a sedimentary rock into a igneous rock?
Melting
To turn a metamorphic rock into a sedimentary rock you need what?
Weathering/cementation
What is it called when a mineral beaks in uneven pieces?
Fracture
What type of rock might contain holes from gases?
Igneous