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Earth Science Semester 1 > Unit 3: Composition of the Earth > Flashcards

Unit 3: Composition of the Earth Flashcards

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1
Q

Which rock type is formed from heat and pressure as well as during continental-continental convergence.

A

metamorphic rock

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2
Q

process that moves sediment from one location to another location

A

erosion

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3
Q

what changes the composition of rocks

A

chemical weathering

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4
Q

what rock contains minerals or metals that have economic usefulness

A

ore

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5
Q

where would you find breccia rocks

A

steep slopes

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6
Q

where would you find green and black shale

A

marine deposits

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7
Q

where would you find coal

A

delta

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8
Q

where would you find conglomerate rocks

A

braided streams

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9
Q

is a hard, colorful mineral with a glassy or shinny luster

A

gemstone

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10
Q

list the characteristics used to identify a minerals

A

naturally occurring
solid
inorganic
have a set chemical formula
have a specific structure

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11
Q

used to identify an unknown mineral using an unglazed porcelain

A

streak test

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12
Q

A mineral that has a Mohs Harness of 5 can be

A

can be scratched by glass, but not by an iron nail

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13
Q

rock type formed through weathering, erosion, deposition, and lithification

A

sedimentary rock

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14
Q

Chalk dissolved by vinegar is a form of

A

chemical weathering

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15
Q

List of possible minerals you could see on the test

A

quartz
graphite
galena
amethyst

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16
Q

the term that means that the process that happen on Earth today can be used to understand how the Earth worked in the past

A

uniformitarianism

17
Q

rock type that contains fossils, halite minerals and can be made from sandstone, silt and clay cemented together

A

sedimentary rock

18
Q

igneous rock is formed

A

when magma, lava or molten rock cools

19
Q

the three rock types

A

igneous rock
metamorphic rock
sedimentary rock

20
Q

What exposes rocks to erosion thus creating sedimentary rocks?

A

tectonic plates

21
Q

What is used to classify igneous rocks?

A

silica minerals

22
Q

places where extrusive igneous rock is found

A

subduction zones
hot spots
mid-ocean ridges and spreading centers

23
Q

place where are metamorphic rocks are often formed

A

convergent boundaries

24
Q

luster is described as

A

metallic
glassy
waxy

25
Q

characteristics of sedimentary rocks

A

stratification of cross beds
nodules of chert
fossils
ripple marks
mud cracks

26
Q

what is porphyritic texture

A

fine-grained crystals with a glassy matrix

Earth Science Semester 1 (4 decks)

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