Mrs. Cronin's Chapter 4 Review Rocks

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Rocks

Name the 3 categories of rock

Igneous, Sedimentary, Metamorphic

Name 2 forces tha produce metamorphic rock

heat and pressure

Name the 2 subdivisions of metamorphic rock

foliated & nonfoliated

metamorphic rocks with grains arranged in parallel layers

foliated

metamorphic rocks with grains arranged randomly

nonfoliated

Name the metamorpic rock that forms from limestone

marble

Name the metamorphic rock that forms from shale

slate

Name the metamorphic rock that forms from granite

gneiss

Name the metamorphic rock that forms from sandstone

quartzite

Schist, slate, & gneiss are what type of metamorphic rock?

foliated

Marble & quartzite are what type of metamorphic rock?

Nonfoliated

Fire rocks that form from magma and lave

Igneous

A rock with large crystals surrounded by small crystals

porphory

Fire rocks that form from lava

extrusive igneous rocks

Fire rocks that form from magma

intrusive igneous rocks

Name the extrusive igneous rock that floats

pumice

Name the most common extrusive igneous rock

basalt

Name a fine-grained extrusive igneous rock that is shiny and looks like a piece of glass

obsidian

Name an intrusive igneous rock that contains the minerals feldspar, mica, quartz, and hornblende

granite

The size of crystals when lava cools quickly

fine-grained

The size of crystals when magma cools slowly

coarse-grained

Small, solid pieces of material that come from rocks or living things

sediment

Sediment is formed from what process?

erosion

When sediments settle out of water or wind

deposition

When sediments are pressed together in layers

compaction

When dissolved minerals glue sediments together

cementation

A series of processes on Earth's surface & in the crust and mantle that slowly change rocks from one kind to another

rock cycle

Name the 3 major groups of sedimentary rock

clastic, organic, and chemical

Tiny particles of clay form which type of sedimentary rock

shale

Small particles of sand form which type of sedimentary rock

sandstone

A clastic sedimentary rock that has rounded, different sized rock fragments

conglomerate

A clastic sedimentary rock that has sharp angular pieces of rock embedded in a matrix

breccia

The type of sedimentary rock that forms when rock fragments are squeezed together

clastic

The type of sedimentary rock that forms when minerals dissolved in solution crystallize

chemical

The type of sedimentary rock that forms when the remains of plants and animals are deposited in thick layers

organic

Shale. breccia, conglomerate, & sandstone are which type of sedimentary rock?

clastic sedimentary rock

Coal and limestone are which type of sedimentary rock?

organic sedimentary rock

Halite and limestone are which type of sedimentary rock?

chemical sedimentary rock

mixtures of minerals and other materials

rocks

Name 3 characteristics geologists use to classify rocks

texture, color and mineral composition

Particles of minerals and other rocks that make up a rock are called?

grains

the look and feel of a rock's surface

texture

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