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SCIENCE LT 2 > LAYERS OF THE EARTH > Flashcards

LAYERS OF THE EARTH Flashcards

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1
Q

thinnest layer

A

the crust

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2
Q

outermost layer

A

the crust

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3
Q

two regions of the crust

A

continental

oceanic

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4
Q

granite rock

A

continental crust

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5
Q

50-100 km

A

continental crust

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6
Q

older than the other crust

A

continental crust

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7
Q

basalt rock

A

oceanic crust

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8
Q

5-8 km

A

oceanic crust

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9
Q

denser than the other crust

A

oceanic crust

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10
Q

what rock is denser than what rock

A

basalt than granite

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11
Q

how many percent volume does the mantle cover up the earth

A

80%

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12
Q

how many percent of land mass does the mantle cover up

A

68%

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13
Q

high pressure and temperature

A

the mantle

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14
Q

solid rock flow slowly

A

the mantle

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15
Q

two parts of the mantle

A

upper

lower

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16
Q

geological events in the upper mantle

A

volcanic activity

earthquakes

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17
Q

what indicates that the outer mantle is solid

A

geological events

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18
Q

solid but plastic

A

lowet mantle

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19
Q

soft

A

lower mantle

20
Q

denser than the other mantle

A

lower mantle

21
Q

ball of hot metals

A

te outer core

22
Q

metals are in liquid state

A

the outer core

23
Q

what metals are in the outer core

A

nickel and iron

24
Q

core: high temp and pressure

A

the inner core

25
Q

metals squeezed together

A

the inner core

26
Q

metals vibrate like a solid

A

the inner core

27
Q

crust + upper mantle

A

lithosphere

28
Q

rigid and brittle rock

A

lithosphere

29
Q

crust broken to pieces

A

listosperic plates

30
Q

broken pieces of crust

A

plates

31
Q

where the listosperic plates float

A

athenosphere

32
Q

soft, semi rigid

A

athenosphere

33
Q

below the lithospere

A

athenosphere

34
Q

hot molten material

A

athenosphere

35
Q

convection of molten rock happens

A

athenosphere

36
Q

weak

A

athenosphere

37
Q

easy earth movement because its weak

A

athenosphere

38
Q

why does middle mantle flow

A

convection currents

39
Q

caused by the hot material at the deepest part of the mantle rising

A

convection currents

40
Q

cools then sinks

A

convection currents

41
Q

moves crust

A

convection currents

42
Q

boundary between crust and mantle

A

mohorovicic discontinuity

43
Q

mohorovicic named after

A

andrija mohorovicic

44
Q

boundary between mantle and outer core

A

gutenberg discontinuity

45
Q

gutenberg named after

A

beno gutenberg

46
Q

beno gutenberg

A

german seismologist

47
Q

layers of the earth

A

crust
mantle
outer core
inner core

SCIENCE LT 2 (5 decks)

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