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Science Unit 3 > Science Unit 5 > Flashcards

Science Unit 5 Flashcards

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Biology 101 flashcards
1
Q

what is a rock

A

A material made of multiple minerals

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2
Q

What’s a mineral

A

A material made of multiple elements

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3
Q

Erratic

A

a rock different from the others around it that is a product of the glaciers

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4
Q

Continental Drift

A

Plants and animal remains can be found in different areas then their supposed to be, the continents look like they can fit together,rocks are in different areas,geological evidence like glaciers leave rocks and coal deposits can be found in unusual places

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5
Q

how are subduction zones, mountains and volcanoes made

A

a oceanic plate and a continental plate collide

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6
Q

how are mid ocean ridges formed

A

two ocean plates move apart

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7
Q

how are mountains made

A

two continental plates collide

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8
Q

what makes plates move

A

convection currents in the mantle

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9
Q

sea floor spreading evidence

A

rock is younger closer to the mid atlantic ridge Old rocks are farther,the sea floor is always getting bigger

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10
Q

how are earthquakes measured

A

with a seismometer on a seismograph

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11
Q

p waves

A

fastest waves, can pass solids liquids and gases,not very dangerous

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12
Q

s waves

A

travel half the speed of p waves, pass solids,do more damage than a p wave

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13
Q

surface waves

A

slowest waves, travel on the surface,cause the surface to roll and do the most damage

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14
Q

ring of fire

A

a ring of volcanoes around the pacific that mostly occur at subduction zones

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15
Q

fold mountains

A

formed when rock layers get compressed horizontally by great pressure

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16
Q

block mountains

A

two rock slabs collide and one ends up on the other and pushes it up

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17
Q

petrified fossils

A

organisms original parts are disovled by water and replaced by silica (quartz)

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18
Q

Carbonaceous films

A

temp and pressure leave a thin bit of residue on the fossil so only a outline is left

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19
Q

original remains

A

the whole organism is trapped and kept in ice,amber or tar

20
Q

trace fossil

A

impression of a fossil left in hardened mud eg. footprint

21
Q

molds

A

the hollow space left in sediments when a organism dies and decomposes

22
Q

superposition

A

a principle that says in untouched rock layers (strata) the oldest rock is at the bottom

23
Q

relative dating

A

a technique used to find the order events in history happened

24
Q

slow pressure on a rock can cause it to

A

fold or break

25
Q

when rocks break under pressure it forms a

A

fault

26
Q

when mountains are jagged on top they are

A

young

27
Q

when mountains are smooth on the top they are

A

older

28
Q

complex mountains

A

more than one proccess makes it

29
Q

most mountains are lifted due to

A

movement and heating of plates

30
Q

thrust faulting

A

slabs of rock move over each other

31
Q

anticline

A

upward fold in strata

32
Q

syncline

A

downward fold in strata

33
Q

converging plates

A

plates collide

34
Q

diverging plates

A

plates move apart

35
Q

shield volcano

A

when lave flows down the side and hardens. its flat

36
Q

cinder cone volcano

A

erupts cinder and ash. Is tall and flat on top

37
Q

Strata cone volcano

A

erupts lava,cinder or ash.Is tall and symmetrical

38
Q

extinct volcano

A

one that may never erupt again

39
Q

dormant volcano

A

a volcano that hasn’t erupted in 200 years.

40
Q

vents

A

a volcanoes opening

41
Q

kilauea

A

most active volcano located in Hawaii

42
Q

olympus mons

A

biggest volcano in the universe located on mars

43
Q

richter scale

A

a way to compare the sizes of earthquakes

44
Q

when plates spread we get …

A

volcanoes

45
Q

when plates collide we get…

A

mountains

46
Q

epicenter

A

the center of an earth quake

Science Unit 3 (4 decks)

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