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Physical Science > 30.2 > Flashcards

30.2 Flashcards

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1
Q

The smallest and closest planet 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 planet from the sun

A

Earth

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4
Q

The fourth planet from the sun

A

Mars

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5
Q

How did the solar system form?

A

From 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

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’ atmosphere like?

A

Very dense, very hot

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10
Q

The temperatures on earth allow water to exist as what state?

A

liquid, solid, gas

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11
Q

What is another name for Mars?

A

The Red Planet

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12
Q

Why is Mars red?

A

iron oxide

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13
Q

How many moons does Mars have?

A

2

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14
Q

What are the names of the moons?

A

Phobos, Deimos

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15
Q

What do the names mean?

A

Phobos- Fear, Deimos- Panic

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16
Q

What was Spirit and Opportunity’s mission?

A

To find 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, extinct volcanoes

19
Q

What was the mission of Viking 1 and Viking 2?

A

photographed the entire surface

20
Q

What was Global Surveyor’s mission?

A

discovered that valles marineris walls were close to the Grand Canyon

21
Q

What did the Odyssey provide evidence of?

A

water as frost underneath a thin layer of soil

22
Q

What data was gathered by the mars pathfinder and its rover sojourner?

A

iron in mar’s crust may have been leached out by groundwater

23
Q

Where did the curiosity rover land?

A

the Gale crater

24
Q

What were the goals of curiosity?

A

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

Physical Science (5 decks)

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