This rock forms when it erupts from a volcano and cools quickly.
What is igneous rock.
100
This is the process that turns rock into sediments.
What is weathering and erosion?
100
An extrusive igneous rock typically containing feldspar, quartz, hornblende and mica.
What is Granite?
100
When shale goes through metamorphism, it turns into this type of rock.
What is slate?
100
This is the definition of a rock.
What is a solid object made of minerals and other materials?
200
This type of rock is formed when bits of weathered rock and other materials are pressed into layers.
What is sedimentary rock?
200
This is the process that turns magma into igneous rock.
What is cooling?
200
An extrusive igneous rock that is black and looks like glass.
What is obsidian?
200
When limestone goes through metamorphism, it turns into this type of rock.
What is marble?
200
This is the most common materials found on earth.
What is rock?
300
This type of rock is formed when heat and pressure change a different kind of rock.
What is metamorphic rock?
300
This is the process that turns one kind of rock into metamorphic rock.
What is Metamorphism (heat and pressure)?
300
This characteristic is found in rocks that have swiss cheese-like holes in them. This causes the holes.
What are gas bubbles?
300
After the metamorphic process, what used to be granite is now this type of rock.
What is gneiss?
300
About 20 minerals make up most of the rocks of Earth's crust.
What are rock-forming minerals?
400
This type of rock is formed when lava cools outside the earth's surface.
What is extrusive igneous rock?
400
This is the process that turns a local area of rock into metamorphic rock due to an igneous intrusion.
What is Contact Metamorphism?
400
This characteristic is found in rocks that are covered with small, flat surfaces that are sparkly.
What is crystals?
400
When sandstone goes through metamorphism, it turns into this type of rock.
What is quartzite?
400
This the most common rock on earth.
What is basalt?
500
This type of rock is formed when magma cools and hardens inside the earth's surface.
What is intrusive igneous rock?
500
Describe the process of Regional Metamorphism.
What is...
an entire region of continental crust is exposed to high pressures and temperatures, thus causing the rocks to undergo changes in mineral composition and crystal size
500
When a rock has straight or wavy stripes of different colors in it, or bands, it has this kind of characteristic.
What is foliation?
500
This metamorphic rock is useful for carving chess pieces.
What is marble?
500
Name two components of gneiss.
What is feldspar, quartz, mica, hornblend (only two)?