Chapter 30 section 2 Flashcards
Closest planet to the Sun
Mercury
Second closest planet to the Sun
Venus
Third planet from the Sun
Earth
Fourth planet from the sun
Mars
How was the solar system formed?
A nebula that collapsed
When was the solar system formed?
4.6 billion years ago
What is mercury’s atmosphere like?
No true atmosphere to Mercury
Which planet is considered Earth’s sister planet?
Venus
What is the atmosphere on Venus like?
It is a dense, hot atmosphere
What states of water can there be on Earth due to its atmosphere?
Liquid, solid, and gas
What is another name for Mars?
The red planet
Why is Mars red?
It is red due to the iron oxide in some of the weathered rocks.
How many moons does Mars have?
Mars has two moons
What are the names of Mars moons?
Phobos and Deimos
What does Phobos and Deimos mean?
Fear and Panic
What was the mission of Spirit and Opportunity?
To search for liquid water
What did Mars Reconnaissance Orbiter discover?
Sediment layering and Gullies
What were the things that Mariner 9 discovered?
Valles Marineris, a larger canyon, and extinct volcanoes
What did viking 1 and viking 2 do?
They photographed the entire surface of Mars
What was the mission of Global Surveyor?
Showed that the walls of Valles Marineris were similar to the Grand Canyon
What evidence did the Odyssey provide?
Water is frost beneath the thin layer of Mars surface
What data was gathered by the Pathfinder and the rover Sojourner?
That iron may have been leached out by groundwater
Where did the Curiosity rover land?
In the Gale Crater
What were the Curiosity’s goals?
Investigate climate and geology, collect evidence from microbial life, and to study planetary habitability
