What is the difference between magma and lava?
magma is below ground
lava is above ground
Under what conditions do metamorphic rocks form?
High heat and pressure
What 2 processes form sedimenatry rocks?
compaction + cementation
What process breaks down rocks?
weathering
How do igneous rocks form?
cooling and crystallization of magma or lava
Why do intrusive rocks have larger grains?
slower cooling
The permenant change of a rock by bending and folding is called what?
plastic deformation
What are broken rock and minerla fragments called?
clasts
What process turns rock into magma?
melting
WHat type of rock is this?
metamorphic
What are the 2 characteristics that help geologists classify rocks?
texture + composition
When magma comes into contact with preexisting rock to form new metamorphic rock it is called?
contact metamorphism
What type of sedimenatry rock is breccia?
clastic
What is the process of rock settling in an area?
deposition
Why are there holes in Pumice?
it is where gasses escape during cooling
What is a rock called when it cools too quickly for crystals to form?
volcanic glass
The rock that changes during metamorphism is called what?
parent rock
What type of rock includes the remians of once living organisms?
biochemical
Why do they call it the rock "cycle"
becasue it is a continous process
Contact metamorphism plays a role in forming what type of rock, with what characteristic?
Nonfoliated Metamorphic Rock
Higher amounts of silica means a rock will generally be ________ in color
lighter
This can form entire mountain ranges
regional metamorphism
Rock salt is what kind of sedimentary rock?
chemical
Water, wind, gravity, and ice are all agents of?
erosion
What type of rock is this? Be specific
Clastic Sedimentary Rock