Igneous rocks can be formed (above or below) the Earth's surface.
Both above and below the Earth's surface.
100
Which characteristic (crystals, fossils, or glassy surface) is common ONLY to sedimentary rocks?
Fossils
100
Metamorphic rocks are formed __________ (above or below) the Earth's surface.
MMRs are formed BELOW the Earth's surface.
100
True or false: A rock can never reach the end of it's rock cycle.
True. It is a cycle, so there is no end.
100
How shiny the mineral is
What is luster
200
Igneous rocks that form ABOVE the Earth's surface are called _______________. They cool ______________ (quickly or slowly).
Extrusive igneous rocks. They cool quickly
200
What is the difference between bioclastic and clastic?
Clastic sedimentary rocks are formed mostly from silicate sediment derived by the breakdown of pre-existing rocks. Bioclastic rocks are formed by the accumulation of fragmented organic remains (such as shell-sand) - i.e. the sediment is of biological rather than non-biological origin.
200
What turns sedimentary or igenous rocks into metamorphic rocks?
Increased pressure and temperature below the Earth's surface
200
How does a type of rock become magma? Can this happen to any type of rock?
Melting. Yes it can happen to any type of rock.
200
Talc can be scratched with a fingernail and a penny. Flourite can't be scratched with a fingernail but can be scratched with a penny. Which is harder, talc or flourite?
Flourite
300
Igneous rocks that form BELOW the Earth's surface are called ________________. The cool ___________ (slowly or quickly).
Intrusive igneous rocks. They cool slowly.
300
Broken pieces of rock are called ______________.
Sediments or fragments
300
What does metamorphic rock become when it melts?
Magma
300
Can any type of rock become sediment? What processes act on these rocks to turn rock into sediment?
Yes, any type of rock can become sediment through weathering.
300
Rubbing the material against a ceramic tile to _____________.
Observe the color of the powder of the mineral
400
Intrusive igneous rocks have a _____________ (large or small) grain size.
Large grain size
400
How is bitimous coal formed?
see reference table
400
What does "metamorphism" mean?
"Change in form"
400
True or false. Two examples of igneous rocks are obsidian and pumice.
True
400
The hardest mineral is a ________________.
A diamond
500
Extrusive igneous rocks have a ___________ (large or small) grain size.
Small or non-existent grain size
500
Sediments (or rock fragments) can turn into sedimentary rock by what processes? (Name two)
Erosion, transportation, and deposition move sediments to different places. Once deposited, COMPACTION and CEMENTING turn sediments into sedimentary rock.
500
Marble is a famous type of rock used in buildings and statues. What type of rock is it?
Metamorphic
500
Identify the series of geologic processes that can transform sediment into sedimentary rock; sedimentary rock into metamorphic rock; and metamorphic rock into magma.
Compaction and cementing; heat and pressure; melting
500
Some minerals can be the same size but weigh different amounts. Those materials would have different _________________.