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Flashcards in Rocks Deck (16):
1

Rock

a rock is a mixture of materials minerals, glass, and organic.

2

Igneous Rock

rock formed when molten cools and hardens.

3

Metamorphic Rock

Rocks that have changed due to temperate or pressure increases that undergo a change in composition.

4

Sedimentary Rock

Form when sediments become pressed or cemented together or when sediments participate out of solution.

5

Extrusive igneous rock (EN=ON)

Are formed when lava cools on/near surface.

6

INtrusive igneous rock (IN=INSIDE)

When magma cools below the earth's surface.

7

Foliated

Are metamorphic rocks in which the mineral grains flatten and and line up in parrell bands.

8

Nonfoliated

a type of metamorphic rock created when mineral grains change, grow, and rearrange, but don't form bands.

9

Detrital rock

Sedimentary rocks are made from broken fragments of other rock that compacted and cemented together.

10

Oganic sedimentary rock

are formed from once living things.

11

Cheimcal sedimentary rock

Form when minerals precipitate from a solution or are left behind after evaporation.

12

Sediments

Sediments are loose materials such as rock fragments, mineral grains, bits of plants and animals that have been transported by wind water or glaciers.

13

Magma

Molten rock under earth's surface.

14

Compaction

Happens when sediments are pressed together to form solid rock.

15

Cementation

Will cause larger sediments to stick together.

16

Weathering

Is the process that breaks rocks into smaller pieces.