30.2 vocab Flashcards
Mercury
is the smallest and closest planet to the sun
venus
the second closest planet to the sun
earth
the third planet to the sun
mars
the fourth planet to the sun
how did the solar system form
collapse of a nebula
how long did the solar system form
4.6 billion years ago
what is mercurys atmosphere
has no atmosphere
what planet is called earth sister planet
venus
what is venus atmoshpere like?
it is very dense and hot
what states can water exist as on earth?
solid, gas, and liquid
what is mars also known as
red planet
why is mars red
due to the weathered rock causeing iron dioxide
how many moons does mars have
two moons
what is the name of the two moons
phobos and deimos
what does phobos and deimons mean
shpere and panic
what was the mission of spirit and opertunity
to look for water
what did the mars reconoses orbiter discover
sediment layering and gullies
what id the mariner 9 space probe discover
extinc valcanos and valles marineris
what did viking 1 and viking 2 do
they photographed the entirte surface of mars
global survayer
found the valles marineris has similer walls to the grand canyon
what did the mars odesy discover
water is frost beneth the thin layer of soil
what did mars pathfinder and rover sojourner discover
that iron may have ben leached out by ground water
where did the curiosity rover land?
gale creater
what was the goals of curiosity?
to investigate climent and geologhy
to collect evidence of microbial life
ro study planetary habitilty
