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A Game of X’s and O’s
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1
To describe a rock’s texture, geologists determine what 3 things about the rock?
1
Size, shape, and pattern of the rock’s grain.Home
2
When all the grains in a rock are large and easy to see, the rock is ______ grained.
2
CoarseHome
3
Igneous rock that cools very quickly when it forms has a texture that is ________.
3
Smooth & shiny with no visible grain.Home
4
Igneous rock that formed from lava that erupted onto Earth’s surface is called _____
rock.
4
extrusive rockHome
5
The most abundant intrusive rock in the continental crust is _______.
5
graniteHome
6
Where does metamorphic rock form?
6
deep undergroundHome
7
Rock that forms from cooling of magma below the surface or lava at the surface is
called ________.
7
igneous rockHome
8
The process by which sediment settles out of the water or wind carrying it is called
________.
8
depositionHome
9
Which igneous rock has large crystals surrounded by smaller crystals?
9
porphyryHome