Chapter 30.2 Flashcards
Mercury
the smallest and closest planet to the Sun
Venus
the second closest planet to the Sun
Earth
the third planet from the Sun
Mars
the fourth planet from the Sun
How did the solar system form?
From a nebula that collapse
How long ago did the solar system form?
4.6 Billion years ago
What is Mercury atmosphere like?
Mercury has no atmosphere
Which planets is referred to Earths sister?
Venus
What is Venus atmosphere like?
Very dense and very hot also unbreathable
What states can water exist as due to the temperatures on Earth?
as a solid, liquid and gas
What is mars also known as?
The red planet
Why is mars red?
The iron oxide
How many moons does Mars have?
2
What are they names of the 2 moons?
Phobos and Deimos
What does Phobos and Deimos mean?
Phobos- fear
Deimos- panic
What was the mission of Spirit and Opportunity?
To search of liquid water
What did the Mars Reconnaissance Orbiter discover?
sediment layering and gullies
What did the Mariner 9 discover?
Valles Marineris- large canyon
Distinct volcanoes
What did Viking 1 and Viking 2 do?
Photographed the entire surface of mars
Global Surveyor
found that the Valles Marineris has similar walls to Grand Canyon
What did the Mars Odyssey discover?
Water as frost beneath a thin layer of soil
What data was gathered by the pathfinder and its rover, Sojouner
that iron may have been leached out by groundwater
Where did the Curiosity rover land?
Gale Crater
What were the goals of curiosity?
Investigate climate of geology
collect evidence for microbial life
to study planetary habitability
