Classifying Rocks
Types of Rocks
Rocks
More rocks
The Rock Cycle
Study Jams
Random
100
Geologists classify rocks into 3 major groups
What is igneous, sedimentary, and metamorphic
100
Minerals that precipitate from evaporation are called
mineral deposits
100
Changes in enormous quantities of rock over a wide area caused by extreme pressure from overlying rock or from compression caused by geologic processes
Regional metamorphism
100
This is how metamorphic rocks are created.
What is extreme heat and pressure
100
Magma cools and crystallizes in the cycle forming _______ rock
What is intrusive igneous rock
100
This common rock-forming minerals that form tetrahedrons which can form rocks like feldspar and quartz.
Silicates
100
This is the reason new minerals form in a metamorphic process
The need for stability
200
The type of rock that forms from magma or lava cooling
What is igneous rock
200
This type of rock is formed from lava ON the earth's surface.
What is extrusive igneous rock
200
These are the building blocks of rocks
Minerals
200
These types of rocks can become metamorphic rocks
What is igneous, sedimentary and other metamorphic rocks
200
Igneous rock transforms to sediment by processes called ___________ & ____________
What is weathering and erosion
200
Rocks with different textures but that are made of the same minerals have this
What is different names?
200
This is the driving energy source behind the formation of igneous and metamophic rocks
Earth's interior
300
This is the term for a solid that has been released from a solution of evaporating water or liquid
Precipitate
300
An extrusive rock with dark color, fine grains and low silica
What is basalt.
300
The type of rock are fossils most likely to be discovered in
Sedimentary rock
300
The formation of these rocks is driven largely by the Sun.
Sedimentary rocks
300
The process where layers of sediment become pressed together over time
What is compaction
300
Flat layers that form in rocks as rocks are squeezed by pressure
foliation
300
Rocks are generally identified by this means.
Texture and the mineral they contain
400
What should be replacing the question mark?
What is deposition or sedimentation?
400
This type of felsic igneous rock is black with a glassy texture. 
What is obsidian
400
Formed by the accumulation of dead plant matter or animal remains being cemented together.
What is Coal
400
The texture of a metamorphic rock arranged in parallel layers (bands) is called
What is foliated
400
Changes in a rock that is in contact with magma due to the magma's extreme heat
Contact Metamorphism
400
If rocks cool slowly describe the size of the crystal it will produce
What is large?
400
Describe sediment?
What is pieces of rock, sand and dirt?
500
Igneous rock cools very quickly.When it forms the appearance could be described as _________.
What is smooth or shiny or no visible crystals (glassy or vitreous)
500
This extrusive igneous rock can float in water, and some people use it to clean their feet. It has many air bubbles.
What is pumice
500
The three groups of rocks are classified by this means
how they were formed
500
Two igneous rocks may be made from the same minerals but have different names due to this.
They may have different textures
500
The processes by which sediments become sedimentary rocks - three words
Deposition, compaction or cementation
500
If granite undergoes high heat and pressure within the Earth, what type of rock will be formed.
Gneiss (a metamorphic rock)
500
What conditions are required for an organism to be fossilized?
(1) Organisms must contain hard parts such as bones, teeth, cartilage, or shells. (2) The organic material must be buried quickly in an oxygen-free environment protected from scavengers.