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Physical Science > 30.2 > Flashcards

30.2 Flashcards

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1
Q

the smallest planet and closest to the Sun

A

mercury

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2
Q

The second closest planet to the Sun

A

Venus

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3
Q

the third closest planets to the Sun

A

Earth

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4
Q

the fourth planet to the Sun

A

Mars

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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 billion years ago

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7
Q

what type of atmosphere does Mercury have?

A

no true atmosphere

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8
Q

What is Earths sisters planet?

A

Venus

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9
Q

What is Venus atmosphere like?

A

very dense and hot atmosphere

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10
Q

what does Earth allow water as?

A

solid, liquid, and gas

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11
Q

Another name for Mars is…?

A

Red planet

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12
Q

Why is Mars red?

A

Because of the iron oxide

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13
Q

What are the names of the two moons in Mars?

A

Phobos and Deimos

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14
Q

What does Phobos mean?

A

Fear

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15
Q

What does Deimos mean?

A

Panic

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16
Q

What was Spirit and Opportunities mission?

A

to search for liquid water

17
Q

What did Mars Reconnaissance orbiter discover?

A

Sediment layering and gullies

18
Q

What did Mariner 9 Space probe discover?

A

Valles Marineris and Extinct volcanoes

19
Q

What was the mission of Viking 1 and Viking 2?

A

it photographed the entire surface of Mars

20
Q

What did global surveyor do?

A

discovered that the Valles Maineris walls are similar to the Grand Canyons?

21
Q

What did the odyssey provide evidence for?

A

water is frost beneath the thin layer of soil

22
Q

What data was gathered by the Mars Pathfinder and its rover Sojourner?

A

iron and Mars crust may have been leached out by groundwater

23
Q

Where did the Curiosity rover land?

A

Gale Crater

24
Q

What were the goals of Curiosity?

A

to investigate climate and geography,
to collect evidence for microbial life,
and studied for planet habitability

Physical Science (7 decks)

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