Classifying Rocks
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
Sedimentary, Igneous, or Metamorphic
100
When studying rock samples, geologist observe the rock's...
What are composition, color, and texture
100
Igneous rock that forms on or beneath Earth's surface.
What is extrusive rock
100
Small, solid pieces of material that come from rocks or living things.
What is sediment
100
These two factors can change any rock into metamorphic
What is heat and pressure
100
This type of rock is made up of sediments
What is sedimentary rocks
200
Tiny particles of minerals or rocks...
What is grains
200
Igneous rock that formed when magma hardened beneath Earth's surface.
What is intrusive rock
200
The four steps of the sedimentary rock process are...
What are erosion, deposition, compaction, and cementation.
200
These are two types of metamorphic rock
What is foliated and nonfoliated
200
Rhyolite is an example of this type of rock
What is igneous rock
300
These grain patterns look like "stacks of pancakes."
What is banded
300
Most of Earth's minerals contain______________, which is a material made from oxygen and silicon.
What is silica
300
The three major rock groups of sedimentary rocks.
What are clastic, organic, and chemical
300
Granite is an example of this type of rock
What is igneous rock
400
What are the three major rock groups...
What are igneous, sedimentary and metamorphic
400
This type of igneous rock is found used in curbstones, floors, and kitchen counters
What is granite
400
When minerals that are dissolved in a solution crystallize, these types of sedimentary rocks form
What is chemical
400
Metamorphic rocks that have their grains arranged in parallel layers or bands
What is foliated
400
Slate is an example of what type of rock
What is metamorphic rocks
500
To describe a rock's texture, geologist look at a rocks...
What is grain size, grain shape, and grain pattern
500
This igneous rock has a glassy texture, it was also used to make sharp tools.
What is obsidian
500
Coal is an example of this type of sedimentary rock
What is coal
500
Geologist classify metamorphic rocks according to their
What is grains
500
The White House is made up of...
What is Sedimentary Rock
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