Flashcards in Rocks Deck (14):
What is the difference between a rock and a mineral?
A rock can be made up of minerals but a mineral cannot be made up of rocks.
What are three types of rocks?
Igneous, Metamorphic, Sedimentary
What is the rock cycle?
The process in which rocks form, transform, and reform
Why doesn't the rock cycle have a beginning or end?
Because rocks are continuously forming
How are igneous rocks formed?
From cooled magma and lava
What is the difference between intrusive and extrusive igneous rocks?
Extrusive igneous rocks from on Earth's surface. (Basalt)
Intrusive igneous rocks form beneath Earth's surface (Granite)
How are metamorphic rocks formed?
Extreme heat and pressure
What are the two categories of metamorphic rock?
Foliated (slate) and non-foliated (marble)
What do the categories of metamorphic rock describe?
The formation of grains on a metamorphic rock
How are sedimentary rocks formed?
Other rocks deposited, compacted, and cemmented
What are three types of sedimentary rocks?
Clastic (quartz) Chemical (some limestone) Organic (coal)
What is unusual about organic rocks?
They can contain remains of living things
Why do some rocks fizz when they come in contact with acid?
It is the natural reaction of rocks