30.2 Flashcards

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1
Q

Mercury

A

smallest and closest planet to the sun

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2
Q

Venus

A

second planet to the sun

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3
Q

earth

A

third planet from the sun and able to support life

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4
Q

Mars

A

fourth planet from the sun and is called the red planet for the iron oxide in weathered rocks

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5
Q

how did the solar system form

A

a nebula collapsing

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6
Q

how long ago did the solar system form

A

4.6 million years ago

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7
Q

what type of atmosphere does mercury have

A

it has no true atmosphere

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8
Q

what is earths sister planet

A

Venus

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9
Q

what is Venus’s atmosphere like

A

dense and hot atmosphere

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10
Q

the temperatures on earth allow for the water on earth to be what

A

solid, liquid, gas

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11
Q

why is mars red

A

the iron oxide in the weathered rocks

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12
Q

mars moons are

A

Phobos and Deimos

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13
Q

Phobos means

A

fear

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14
Q

Deimos means

A

panic

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15
Q

whats was spirit and opportunity’s mission on mars

A

discover water

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16
Q

what was the reconnaissance’s mission

A

discover sediment layers and gullies

17
Q

what did mariner 9 discover

A

Valles marineris and volcanoes

18
Q

what is the mission of viking 1 and viking 2

A

photograph entire surface of mars from orbit

19
Q

global surveyor was sent to

A

survey the walls of valles marineris and are similar to the grand canyons walls

20
Q

what did the odyssey discover

A

there is water as frost below thin layer of soil

21
Q

what data was gathered by the mars path finder sojourner

A

iron in mars crust leached out because of ground water

22
Q

where did the curiosity rover land

A

the gale crater

23
Q

what were the goals of curiosity

A

to investigate climate and geology, collect evidence for microbial life, and study for planetary habitability