earth science chapter 23 Flashcards

(36 cards)

1
Q

is it a three dimensional thing or is it mostly in a disk when rotating

A

disk. 3 degrees off

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2
Q

why are the inner planets terrestrial

A

because its rocky, and earthlike

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3
Q

why are outer planets called jovian

A

they are like jupiter

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4
Q

what are the outer planets like

A

gassy, liquid and a bit solid

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5
Q

what are terrestrial planet like

A

mostly rock

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6
Q

what is the formation of solar system

A

nebula. then they all moved toward each other creating gravity and then they get faster and faster and until it becae a sun. leftovers became planets.

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7
Q

what is one astronomical unit equal to in km

A

150,000,000 km

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8
Q

what is eccentricity

A

the number value of how elliptical or oval like a pathway is

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9
Q

eccentricity formula
what is d
what is l

A

E=D/L
D is the measurement within the thumbtacks
L is the measurment of the long side

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9
Q

how big is mercury

A

the size of earths moon

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10
Q

why does mercury look like the moons surface
2 reasons

A

because it has no atmosphere and asteroids bump into it.
also since its close to the sun its hot and the molecules reach escape velocity and escape

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11
Q

what is mercury like

A

cliffy because of plates and cooling.

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12
Q

can we see through venus atmosphere

A

no because their is so many clouds raining sulferic acids

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13
Q

name some probes

A

venera probes

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14
Q

whats the largest volcano on venus

A

maat mons

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15
Q

what is the three layers of earth

A

crust, mantle, and core

16
Q

why do the light elements of helium and nitrogen stay nearby

A

because of gravity and its cold so they cant reach escape veocity

17
Q

what rover landed on mars

18
Q

why is phobus so no cilrular

A

not enough gravity to make it sphericle

19
Q

what is the largest volcano in our solar system

20
Q

why are their dustorms on mars

A

since mars atmosphere is very thing it cools at night but warms during the day making storms

21
Q

how did the pathfinder rover land what was the first rover to land

A

it deployed airbags to make the landing soft. pathfinder

22
Q

why do scientists think their is water on mars

A

because their are river like channels on them

23
Q

jupiter structure

A

gas, then turns into liquid while metal is at the core.

24
why does neptune take so long to orbit
because it is far out and its traveling slower
25
what does jupiter have that is similar to mars
a great dark spot. mars has a great red spot. its a big storm the size of earth
26
what is weird about the energy of jupiter
it gives out more than it recieves
27
which of jupiters moons is closest
io
28
what are the four main moons of jupiter
: Io, Europa, Ganymede, and Callisto
29
what are some cool facts about jupiter moons
io: closest to Jupiter Europa: may have life because of water under ice Ganymede: biggest moon in the solar system Callisto: its icy and covered with craters
30
what were the four things voyager 1 discovered
active atmosphere cyclonic storms eleven more moons rings more complex
31
what is a provisional moon
a moon that hasnt been named but its a moon of that planet
32
why wasnt pluto the most outer planet all the time
becuase its path was extremely elliptical
32
whats unique about uranus
its rotating sideways
33
where are most asteroid at
the asteroid belt between mars and jupiter
33
what is the largest asteroid
ceres