Chapter 30.2 Flashcards
The smallest and closest 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 was the solar system formed?
A nebula collapse
When did the solar system form?
4.6 billion years ago
What is Mercury’s atmosphere like?
Has no true atmosphere
Which planet is referred to as earth’s sister planet?
Venus
What is Venus’ atmosphere like?
Dense atmosphere and hot
What states can water exist in on Earth?
Solid, Liquid, & Gas
What is Mars’ nickname?
Red Planet
Why is Mars red
Iron Oxide
How many moon does Mars have?
2
What are names of Mars’ moons?
Phobos & Deimos
What does Phobos mean?
Fear
What does Deimos mean?
Panic
What was the mission of Spirit & Opportunity in 2003?
Search of liquid water
What did Mars Reconnaissance Orbiter discover in 2009?
Sediment layering & gullies
What did Mariner 9 discover?
Valles Marineris (Large canyon) & Extinct Volcanoes
What did Viking 1 & Viking 2 accomplish?
Photographed Mars’ entire surface
What did Global Surveyor do?
Provided evidence that Valles Marineris walls are similar to those of the Grand Canyon
What did Mars Odyssey discover on Mars?
There’s water as frost beneath a thin layer of soil
What data was gathered by the Mars Pathfinder and its rover Sojouner?
Iron in Mars’ crust may have been leached out by groundwater
Where did the Curiosity land on Mars?
Gale Crater
What were the rover’s goals?
Look at climate & geology
Collect evidence for microbial life
Study planetary habitability for future human exploration
