earth science chapter 23 Flashcards
is it a three dimensional thing or is it mostly in a disk when rotating
disk. 3 degrees off
why are the inner planets terrestrial
because its rocky, and earthlike
why are outer planets called jovian
they are like jupiter
what are the outer planets like
gassy, liquid and a bit solid
what are terrestrial planet like
mostly rock
what is the formation of solar system
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.
what is one astronomical unit equal to in km
150,000,000 km
what is eccentricity
the number value of how elliptical or oval like a pathway is
eccentricity formula
what is d
what is l
E=D/L
D is the measurement within the thumbtacks
L is the measurment of the long side
how big is mercury
the size of earths moon
why does mercury look like the moons surface
2 reasons
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
what is mercury like
cliffy because of plates and cooling.
can we see through venus atmosphere
no because their is so many clouds raining sulferic acids
name some probes
venera probes
whats the largest volcano on venus
maat mons
what is the three layers of earth
crust, mantle, and core
why do the light elements of helium and nitrogen stay nearby
because of gravity and its cold so they cant reach escape veocity
what rover landed on mars
perseverance
why is phobus so no cilrular
not enough gravity to make it sphericle
what is the largest volcano in our solar system
olympus mons
why are their dustorms on mars
since mars atmosphere is very thing it cools at night but warms during the day making storms
how did the pathfinder rover land what was the first rover to land
it deployed airbags to make the landing soft. pathfinder
why do scientists think their is water on mars
because their are river like channels on them
jupiter structure
gas, then turns into liquid while metal is at the core.
why does neptune take so long to orbit
because it is far out and its traveling slower
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
what is weird about the energy of jupiter
it gives out more than it recieves
which of jupiters moons is closest
io
what are the four main moons of jupiter
: Io, Europa, Ganymede, and Callisto
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
what were the four things voyager 1 discovered
active atmosphere
cyclonic storms
eleven more moons
rings more complex
what is a provisional moon
a moon that hasnt been named but its a moon of that planet
why wasnt pluto the most outer planet all the time
becuase its path was extremely elliptical
whats unique about uranus
its rotating sideways
where are most asteroid at
the asteroid belt between mars and jupiter
what is the largest asteroid
ceres
