Chapter 30.2
暂无描述。系统推荐的高质量记忆内容，适合每天坚持背诵学习。
卡片预览 (24 张)
The smallest and closes planet to the sun .
Mercury
The second closest planet to the sun .
Venus
The third planet from the sun .
Earth
The fourth planet from the sun .
Mars
How did the solar system form
nebula collapse
How long did the solar system take to burn
4.6 million
What type of atmosphere does mercury have
no true atmosphere
What is earths sister planet
Venus
What is Venus atmosphere like .
It is very hot and very dense
What are the three minerals on earth
solid liquid and gas
what is another name for mars
red planet
Why is mars red
because of the iron oxide
How many moons does mar have
2 moons Deimos and Phobos
Phobos
means fear
Deimos
Panic
What was spirit and opportunity mission
in search of liquid water
What did mars reconnaissance orbiter discovered
sediment layering and gullies in 2009
What did mariner 9 space probe discover
Valles Marineris and a large canyon
what was the mission of viking 1 an viking 2
photographed the hole service of mars
What was groble serval do
Descovered that the valles marineris walls are simaler to the grand canyon
What did the odyssey discover
the water is frost underneath the thin layer of soyal
what data was gathered by the mars sojourner
iron in mars crust may have been leaked out by groundwater
Where did the curiosity rover land
gale crater
what were the goals of curiosity
to investagat climate geology to colect evadince for my carobal life , and study for the plantaraty for planet livaty