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Science Ch 30 > 30.2 Science > Flashcards

30.2 Science Flashcards

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1
Q

smallest and closest to the Sun

A

Mercury

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2
Q

Second closest to the Sun

A

Venus

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3
Q

third planet from the sun

A

Earth

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4
Q

fourth planet from the Sun

A

Mars

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5
Q

How did the solar system form?

A

From a nebula that collapsed

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6
Q

How long ago was the solar system formed?

A

4.6 billion years ago

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7
Q

What is Mercury´s atmosphere like?

A

Has no true atmosphere

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8
Q

Which planet is referred to Earth´s sister planet?

A

Venus

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9
Q

What is Venus´ atmosphere like?

A

Dense, hot atmosphere

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10
Q

What states can water be formed as?

A

Solid,liquid, and 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

Due to the iron oxide

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13
Q

How many moons does Mars have?

A

2 moons

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14
Q

What are Mars moons called?

A

Phobos and Deimos

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15
Q

What does the greek word Phobos mean?

A

Fear

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16
Q

What does the greek word Deimos mean?

A

Panic

17
Q

What was the mission of Spirit and Opportunity on Mars?

A

To search for liquid water on Mars

18
Q

What did Mars Reconnaissance Orbiter discover?

A

Sediment layering and gullies

19
Q

What did Mariner 9 discover?

A

Large canyon (Valles Marineis) and extinct volcanoes

20
Q

What did Viking 1 and Viking 2 probes do?

A

Photographed the entire surface of Mars from orbit

21
Q

What was Global Surveyor do?

A

It showed the walls of Valles Marineis had similar layers as the Grand Canyon?

22
Q

What evidence did the Mars Odyssey provide?

A

Water is frost beneath the thin layer of Mars surface

23
Q

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

A

That iron may have been leached out by groundwater

24
Q

Where did the Curiosity rover land on Mars?

A

The Gale crater?

25
Q

What was the Curiosity goals?

A

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

Science Ch 30 (5 decks)

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