chapter 30 section 2 Flashcards
(25 cards)
Mercury
The closest planet to the sun.
Venus
The second closest planet to the sun.
Earth
The third closest planet to the sun.
Mars
The fourth closest planet to the sun.
How did the solar system form
When a Nebula collapses
How long ago did the solar system form
4.6 billion years ago
what type of atmosphere does Mercury have?
It has no true atmosphere.
what is earths sister planet?
Venus is earths sister planet.
What is venus atmosphere like
Very dense and very hot.
The tempuratures on earth allow water to exist at what states?
Solid, liquid, gas
What is another name for mars?
The red planet.
Why is mars red?
Cause of the iron oxide.
How many moons does mars have?
Two moons
What are the names of Mars’s moons?
Phobos and Deimos
Phobos meaning?
It means Fear
Deimos meaning?
It means panic
What was sprit and opportunities mission?
To find liquid water.
what did mars Reconnaissance Orbiter discover?
Sediment layering and gullies in 2009
What did Mariner 9 Find on its mission?
Extinct volcanoes and Valles Marineris
what was the mission of viking one and viking two
They photographed the entire surface of mars.
what did global surveyers do?
It discovered the the valles Marineris walls were similar to the grand canyons walls. z
what did the mars Odyssey provide evidence for
water is frost beneath a thin layer of soil
What did the mars pathfinder and its rover sojourner find?
Iron leached out by ground water
where did the curiosity rover land?
The gale crator
