Classifying Rocks
Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
General Questions
100
A rock's color provides clues to the rock's what?
What is mineral composition
100
What are the two categories of Igneous Rocks?
What are Extrusive and Intrusive
100
What is sediment?
What is small solid pieces of material that come from rocks.
100
What are the two things needed for a rock to be turned into a metamorphic rock?
What is heat and pressure
100
How does a coral reef form?
What is the coral animals die and their skeletons remain and build up on top of each other.
200
What rock is generally light colored and has a high silica content?
What is granite
200
What is the definition of Intrusive?
What is a rock that hardens inside the earth
200
Running water, wind, or ice loosen and carry away fragments of rock. Which process is this?
What is erosion
200
What are the two categories from a metamorphic rock?
What is foliated and non foliated?
200
Coral animals are tiny relatives to what animal?
What is jellyfish
300
What are the three categories that classify a rock's texture?
What are grain size, shape, & pattern
300
What is a characteristic of an intrusive rock besides where it hardens?
What is the size of crystals is generally larger
300
What are the three types of sedimentary rock?
What is clastic, organic, and chemical.
300
Shale is a sedimentary rock. What metamorphic rock does it change into?
What is slate?
300
If I wanted a fine, even grain rock that can be cut into thin slabs or carved into many shapes, what type of rock would I use?
What is metamorphic.
400
What are the 4 minerals that make up granite?
What are quartz, feldspar, hornblende, and mica
400
What is silica and how does it effect a rock?
What is a mixture of oxygen and silicon. High silica is light colored rock and low silica is dark colored rock.
400
What is an example of a chemical rock
What is sea water evaporating and leaving the salt to crystallize and form rock salt. Any example will do.
400
Where does a rock turn into a metamorphic rock?
What is beneath the Earth's surface
400
Coral reefs are actually what rock?
What is organic limestone?
500
What are all the sub categories under the three texture categories
What are grain size (fine, course, and no visible grain), grain shape (rounded & jagged), and grain pattern (banded & non banded)
500
What are the three things Igneous rocks are classified on?
What are origin, texture, and mineral composition.
500
In order name the process of sedimentary rocks.
What is erosion, deposition, compaction, and cementation.
500
Geologists classify Metamorphic rocks according to what?
What is the arrangement of the grains that make up the rocks.
500
If you are a Metamorphic rock what are the complete steps you can take to become a DIFFERENT type of rock?
What is melting and then volcanic activity to become an igneous rock or erosion and deposition to then become a sedimentary rock.