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Chapter 30 > 30.2 > Flashcards

30.2 Flashcards

1
Q

what is the smallest and closest planet to the sun

A

Mercury

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2
Q

second closest planet to the sun

A

Venus

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3
Q

what is the 3rd planet from the sun

A

Earth

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4
Q

4th planet from the sun

A

Mars

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5
Q

how long ago did the solar system form

A

4.6 billion years ago

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6
Q

what type of atmosphere does Mercury have

A

no true atmosphere

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7
Q

what type of atmosphere does Venus have

A

dense atmosphere

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8
Q

what is Earths sister planet

A

Venus

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9
Q

water is allowed to exist in what form

A

solid, liquid, or gas

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10
Q

what is mars know as

A

the red planet

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11
Q

why is mars red

A

iron-oxide

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12
Q

how many moons does mars have

A

two

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13
Q

what are the names of mars two moons

A

Phobos and Deimos

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14
Q

what does Phobos and Deimos mean

A

Fear and Panic

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15
Q

what was spirit and opportunity’s mission

A

to find liquid water

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16
Q

what did mars reconnaissance orbiter discover

A

sediment layers and gullies

17
Q

what did Mariner 9 discover

A

Valles Marineris and extinct Volcanoes

18
Q

what did viking 1 and 2 do

A

they photographed the surface of mars

19
Q

what did global surveyor do

A

looked at the walls of Valles Marineris

20
Q

what did odyssey do

A

provided evidence such as water and frost underneath the soil

21
Q

what did mars pathfinder and sojourner gather

A

that iron in mars crust may have been leached out by ground water

22
Q

where did Curiosity land

A

the Gale Crater

23
Q

what was the goals of Curiosity

A

Investigate Climate and Geology- Collect evidence of microbial life- Planetary habitability Studies

Chapter 30 (3 decks)

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