Layers of the Earth Flashcards

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1
Q

order the layers

A

crust, mantle: upper, transition, lower, d”, outer core, inner core

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2
Q

the depth of 2900 km

A

mantle

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3
Q

most less than 100 million years old

A

crust

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4
Q

ocean or continental

A

crust

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5
Q

convection

A

outer core

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6
Q

Upper, Transition, Lower, & D”

A

Mantle

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7
Q

thinner in ocean

A

crust

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8
Q

solid or plasma(with density of a solid)

A

inner core

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9
Q

basalt or granite

A

crust

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10
Q

mostly iron

A

inner core

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11
Q

high temperatures make it pliable

A

mantle

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12
Q

dynamo theory

A

outer core

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13
Q

thickest layer

A

mantle

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14
Q

could be a single iron crystal

A

inner core

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15
Q

solid but nearly liquid

A

mantle

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16
Q

forms earth’s magnetic field

A

outer core

17
Q

liquid

A

outer core

18
Q

thicker on land

A

crust

19
Q

iron mixed with nickel

A

outer core

20
Q

5-70 km thick

A

crust

21
Q

solid rock

A

crust

22
Q

flows very slowly over long periods of time

A

mantle

23
Q

Planetary differentiation steps

A

order

24
Q

layers form

A

step 3

25
Q

layers locked in position

A

step 6

26
Q

planet cools over time

A

step 4

27
Q

dense materials sink while less dense materials float

A

step 2

28
Q

mass of planet is molten

A

step 1