Christmas Squares

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A Game of X’s and O’s

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X

O

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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