Structure of The Earth Unit Vocabulary Flashcards

(29 cards)

1
Q

The functional layer is located below the lithosphere and in the the mantle. greek for weak. upper mantle and relatively thin. 50-100 miles thick. highly viscous almost solid. pliable solid. flows reluctantly and molds around.

A

Asthenosphere

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2
Q

The functional layer of gases surrounding Earth. Mostly nitrogen and some oxygen.

A

atmosphere

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3
Q

all living organisms. is wherever there is liquid water. atmosphere and hydrosphere

A

biosphere

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4
Q

p-waves and s-waves. penentrate the surface or crust. propagation speeds change as waves continue to travel.

A

body waves

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5
Q

the crust, mantle, outer core, and inner core

A

compositional layers

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6
Q

the thinnest and outer layer located on land.

A

continental crust

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7
Q

The circulation and process of cool/dense material sinking and hot/ less dense material rising. This repeats because as it sinks it heats up and as it floats it cools down.

A

convection cells

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8
Q

the theory that outer core and its lvz/ movement causes Earth’s magnetic field.

A

dynamo theory

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9
Q

calculated density of earth using its size. applies this to discovering more about the layers and Earth.

A

gravitational constant

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10
Q

all water on Earth: in any state of matter, on and in the crust, mostly in the ocean

A

hydrosphere

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11
Q

the furthest layer of earth from the surface. Most pressure and the hottest. single iron crystal. solid/ plasma. 10k degrees farenheit 70% size of the moon.

A

inner core

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12
Q

functional layer located on crust and upper mantle. greek for rock. rigid. tectonic plates.

A

lithosphere

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13
Q

the layers and their roles/groups. lithosphere, asthenosphere, mesosphere, outer core, & inner core.

A

mechanical layers

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14
Q

the thinnest and outermost layer located in the ocean.

A

oceanic crust

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15
Q

only liquid layer, convection cells.

A

outer core

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16
Q

body wave that travels the fastest, can travel through solids or liquids and are compressional waves.

17
Q

how the layers and how the planet forms.

A

planetary differentiation

18
Q

heat in the earth that is leftover from the formation of the earth.

A

primordial heat

19
Q

waves moving through a substance.

20
Q

elements in the earth release radiation to become stable and change their form.

A

radioactive decay

21
Q

body wave seismic and moves at medium speed. transverse or shear and can only travel through solids

22
Q

caused by earthquakes, landslides, nuclear detonations, volcanic eruption

A

seismic waves

23
Q

the graphic that is recorded of the seismic waves.

24
Q

the machine that records waves /station

25
ppl who study the internal structure of the Earth and try to determine factors that contribute to or foretell an earthquake
Seismologist
26
are created when waves bend and leave areas unaffected. 103 & 150 degrees for p-waves
shadow zone
27
transverse. movement perp. to direction of propagation.
shear wave
28
rayleigh and love seismic waves that travel on the surface. epicenter around earth. shear waves.
surface wave
29
the resistance of a material to flow
viscosity