Minerals and Properties
Rock Cycle
Rock Layers & Geologic Time
Potpourri
Potpourri
100
What properties are affected by changing the size of the mineral?
Nothing is changed.
100
Sedimentary rocks become metamorphic rocks through what process?
Heat and pressure
100
Geologic time can be divided into what time periods?
Eras, Epochs and Periods
100
What do we call a person who studies rocks, minerals, and other non-living parts of the earth
A geologist
100
What is happening at number 4 and 7?
Weathering and erosion
200
What are the three descriptors for transparency?
Transparent, Translucent and Opaque
200
Igneous rocks turn to sediment through what process?
Weathering and erosion
200
What is the principle of superposition?
The further down a rock layer is the older it is.
200
What is it called when a mineral shows a double image of a letter?
Double Refraction
200
The terms used for something that is living is.....
Biotic
300
What property uses descriptors such as glass, silky, pearly and greasy?
Luster
300
Sediment becomes a sedimentary rock through what process?
Compaction and cementation
300
How would one define the rock cycle?
The formation and break down of rocks from one type to another
300
What is generally true about minerals with higher numbers on the Mohs Hardness Scale?
They can scratch minerals with lower numbers
300
Which layers do not contain fossils in the image?
A, B and E
400
What were the crystalline structures learned in class this quarter?
Tetrahedron, Cube, Rhombohedrum and Octahedron
400
Metamorphic rocks turn into igneous rocks through what processes?
First melting into magma then slowly cooling
400
What is the best description related to how rock layers form?
All rock layers form at different rates.
400
Why is coal considered a non-renewable resource?
The amount of time it takes for coal to form is longer than our lifetime
400
How do sedimentary rocks form?
Layers of sediment piled up over time that eventually hardened
500
What mineral is known to react with acid?
Calcite
500
The law of conservation of matter states what?
Law of conservation of matter states that matter cannot be created or destroyed.
500
What is Geologic Time?
The measurement used to date the earth using eras, epochs and periods.
500
In the rock cycle, Igneous rocks can form from what processes?
Sedimentary rocks melting down into magma and then the magma cooling eventually solidifying in solid rock, Metamorphic rocks melting down into magma and then the magma cooling eventually solidifying in solid rock AND Igneous rocks melting down into magma and then the magma cooling eventually solidifying in solid rock
500
In the rock cycle, Metamorphic rocks can form from what processes?
Sedimentary rocks being exposed to heat and pressure and changing into metamorphic rocks AND Igneous rocks being exposed to heat and pressure and changing into metamorphic rocks