Igneous
Sedimentary
Metamorphic
Random Rock Type Questions
Bonus Questions
100
This is what igneous rock starts out as.
What is magma?
100
What are the small pieces of minerals and rock that are formed from weathering?
What is sediment?
100
This is what it takes for a rock to undergo metamorphism?
What is if the temperature and pressure of a rock is different than the environment in which the rock formed, then it will undergo metamorphism?
100
This is the type of igneous rock that is formed inside the Earth's crust.
What is intrusive igenous rock?
100
Intrusive igneous rock has this type of texture. Why?
What is a coarse grained texture. This is because it is hotter inside the earth, so it takes longer for the magma to cool, which allows the crystals to grow longer. This causes the mineral to have a rough texture.
200
This is how igneous rock forms.
What is when magma cools and solidifies.
200
Dissolved minerals seperate from water that passes through sediment and do what?
What is bind rock and mineral fragments together into sedimentary rock.
200
These are the two ways in which metamorphism can occur.
What are contact and regional metamorphism?
200
This is the type of igneous rock that is formed on Earth's surface.
What is extrusive igneous rock?
200
When rapid cooling of magma occurs, it does not have time to form these. This is also the texture of the rock.
What are crystals? What is a super smooth texture?
300
What are the two basic compositions of igneous rocks?
What are felsic and mafic.
300
This is where sedimentary rocks form.
What is at or near Earth's surface?
300
These are the two textures of metamorphic rock.
What is foliated and nonfoliated metamorphic rock?
300
This is the texture of metamorphic rock in which the mineral grains are not arranged in planes or bands.
What is nonfoliated?
300
This is another type of organic sedimentary rock that forms underground when partially decomposed plant material is buried beneath sediment and is changed due to heat and pressure over millions of years.
What is coal?
400
Coarse igneous rocks form when the magma cools at this speed. Why?
What is slowly? This is because if it cools slow, the mineral crystals have more time to grow.
400
This is the most noticeable feature of sedimentary rock.
What is that the sedimentary rocks are in layers or strata (single horizontal layer of rock)
400
This is texture of metamorphic rock in which the mineral grains are arranged in planes or bands.
What is foliated?
400
These are features in metamorphic rock that change the shape of a rock due to a force placed on it. These forces may cause a rock to be squeezed or stretched.
What are deformations?
400
This is the process in which sedimentary rocks are arranged in layers.
What is stratification?
500
Fine-grained igneous rocks form when magma cools at this speed. Why?
What is quickly? This is because the less time it has to cool, the less time crystals have to form.
500
These are the three main types of sedimentary rock.
What are clastic, chemcial, and organic?
500
These minerals are used to estimate the temperature, depth, and pressure at which a rock undergoes metamorphism. Many of these minerals only form in metamorphic rock.
What are index minerals?
500
These are the differences between clastic, chemical, and organic sedimentary rock.
What is clastic is made of fragments of rock, chemical forms from solutions of dissolved minerals and water, and organic forms from the remains of once-living plants and animals.
500
These are features found in sedimentary rock that sometimes record the motion of wind and water waves on lakes, oceans, rivers, and sand dunes.
What are ripple marks?
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