Science Core Flashcards

1
Q

The way a surface reflects light

A

luster

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2
Q

a minerals resistance to being scratched

A

hardness

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3
Q

the tendency of some minerals to break along smooth, flat surfaces

A

cleavage

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4
Q

the color of a mineral in powdered form

A

streak

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5
Q

non living

A

inorganic

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6
Q

a naturally occurring solid mixture of one or more minerals and organic matter

A

rock

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7
Q

the breaking down of rocks (water, wind, ice, heat)

A

weathering

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8
Q

causes the oceanic lithosphere to move sideways and away from mid- ocean ridges

A

convection currents

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9
Q

when 2 tectonic plates collide

A

convergent

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10
Q

when 2 tectonic played separate

A

divergent

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11
Q

when 2 tectonic played slide past each other horizontally

A

transform

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12
Q

the movement of one tectonic plate underneath another

A

subduction

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13
Q

richter scale

A

to measure magnitude

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14
Q

mecalli scale

A

to measure intensity

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15
Q

a break in the earths crust along which 2 blocks of the crust slide relative to one another

A

fault

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16
Q

the point inside the earth earth where an earthquake begins

17
Q

the point on the earths surface directly above an earthquakes starting point

18
Q

a volcanically active area of earths surface far from a tectonic plate boundary

19
Q

what are the 4 characteristics of a mineral?

A

solid
inorganic
crystalline structure
natural

20
Q

formed by cooled magma/lava

21
Q

formed by compacted layers of sediment

A

sedimentary

22
Q

formed by tremendous heat, great pressure, and chemical reactions

A

metamorphic

23
Q

igneous to sedimentary

A

weathering and erosion

24
Q

sedimentary to metamorphic

A

heat and pressure

25
metamorphic to magma
melting
26
metamorphic to sedimentary
weathering and erosion
27
magma to igneous
cooling
28
what are the layers of the earth
inner core, outer core, mantle, crust
29
how do we know about the layers of the earth
seismic waves