Rock Introduction
Igneous Rocks
Metamorphic Rocks
Sedimentary Rocks
Rock Cycle
100
What are rocks made of?
Rocks are made of minerals.
100
What are igneous rocks formed from?
Igneous rocks are formed from lava or magma.
100
What forms metamorphic rocks?
Heat and pressure applied to pre-existing rocks form metamorphic rocks.
100

What is a common use for sedimentary rock?

Construction


100
What is the process of rocks turning from one rock to another called?
The process of one rock turning into another is called the rock cycle.
200
Are rocks formed naturally?
Yes, rocks form naturally in nature.
200
What are the two classifications of igneous rocks?
Igneous rocks can be classified by intrusive or extrusive characteristics.
200
Name one characteristic of a metamorphic rock.
Banding is a characteristic of a metamorphic rock.
200

Name 2 sedimentary rocks

Sandstone, Limestone, Shale, Conglomerate, Coal

200
How would an igneous rock turn into a metamorphic rock?
The igenous rocks turn into metamorphic rocks by being subjected to heat and pressure.
300
Can rocks change from one form to another?
Yes, rocks can change from one form to another. This is called the rock cycle.
300

When an igneous rock cools extremely fast, distinct feature will it acquire?

The crystal size in the rock will be very small as a result of the rapid cooling

300

What type of rock can change into a metamorphic rock?

Any type — igneous, sedimentary, or even another metamorphic rock.

300

What are the 3 distinct features of a sedimentary rock?

Crumbly/Rough/Sandy Texture, Fossils and Layers

300
How do igneous rocks turn into sedimentary rocks?
Igneous rocks must weather, erode, get deposited, go through compaction and cementation before becoming a sedimentary rock.
400
What is one difference between sedimentary and metamorphic rocks?
Sedimentary rocks can have fossils, while metamorphic rocks cannot.
400
As the time a rock cools increases, what happens to the crystal size?
The longer the igneous rock takes to cool, the larger the crystals will be.
400

Which metamorphic rock is formed from limestone and is often used for countertops?

Marble

400

Why can sedimentary rocks have fossils, while metamorphic or igneous rocks cannot?

Igneous rocks cannot have fossils because the fossils would have been melted away. Metamorphic rocks cannot have fossils because the fossils would be ruined in the heat and pressure found under the surface of the Earth.

400
How does a metamorphic rock turn into an igneous rock?
The metamorphic rock must melt before turning into an igneous rock.
500
How do igneous and metamorphic rocks differ?
Igneous rocks are formed from cooled lava or magma, while metamorphic rocks form from pre-existing rocks that were subjected to heat and pressure.
500
What are the air pockets called that form when an igneous rock cools quickly?
The air pockets are called vesicles; showing vesicular air pockets.
500

Marble is a metamorphic rock that forms from limestone. What changes might you observe in the rock after it becomes marble?

It becomes harder, has a crystal texture, and may appear shinier or smoothe

500

What is the process of how sedimentary rocks form (what are the 5 stages)

Weathering, Erosion/Transport, Deposition, Compaction and Cementation

500
Can a sedimentary rock turn into another sedimentary rock? If so how? If not, why not?
Yes, a sedimentary rock can turn into another sedimentary rock by the weathering, eroding, depositing, compaction and cementation of sediments.
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