Ignious Rocks
Igneous rock forms from molten rock in the form of ____ or ___
Magma or lava
Metamorphic rocks form when rocks are exposed to high _____ and pressure
Temperature
The energy resource ____ is a chiochemical rock composed of the remains of plants and animals from prehistoric swamps
Coal
A ____ is a natural, solid mixture of minerals or particle
Rock
Sometimes ____ trapped in the lava escape, leaving holes in the extrusive rock.
Most metamorphic rocks form deep in Earth's crust and _____
Mantle
Some biochemical rocks contain silicon and ____ instead of carbonates
Oxygen
____ are the fragments that make up rocks
Grains
The temperature must reach at least _____ degrees Celsius or ____ degrees Fahrenheit to form rock
150 degrees Celsius or 302 degrees Fahrenheit
______ rocks form from broken pieces of minerals and rock fragments
Clastic
Composition can also determine the __________ that existed when the rock formed
Conditions
Igneous rocks are classified, in part, due to their _____ content
silica
Foliated rocks
_________ forms when the minerals crystallize directly from water
Chemical rocks
______ rock material that forms where rocks are broken down into smaller pieces or dissolved in water as rock erodes
Sedimentary
As with all types of rocks, the two characteristics that can help to identify igneous rocks are _______ and ______
One way that non foliated rocks form is by ____________
Contact Metamorphism
As young layers of sediment are deposited on top of older layers, the weight from the layer of sediment forces out fluids and decreases space between grains during a process called ______
Compaction
Rocks change in the cycle by ______ Name 3
Weathering, erosion, deposition, compaction, and cementation