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Science Chapter 30 > Chapter 30.2 > Flashcards

Chapter 30.2 Flashcards

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Biology 101 flashcards
1
Q

Smallest planet closest to the Sun is…

A

Mercury

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2
Q

The second closest planet to the Sun is…

A

Venus

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3
Q

The third planet closest to the Sun is…

A

Earth

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4
Q

The fourth planet from the sun is…

A

Mars

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5
Q

How long ago did the solar system form?

A

4.6 billion years ago (created by a nebula collapse)

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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

a dense atmosphere

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8
Q

Which planet is referred to as Earth’s sister planet?

A

Venus

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9
Q

What form is water on Earth?

A

solid, liquid, gas

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10
Q

What is Mars also known as?

A

the Red Planet

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11
Q

Why is Mars red?

A

because of iron oxide

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12
Q

How many moons does Mars have?

A

2

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13
Q

What are the names of Mars’s moons?

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 Opportunity’s mission?

A

to search for liquid water on Mars

17
Q

What did Mars Reconnaissance Orbiter find on Mars?

A

sediment layering and gullies (in 2009)

18
Q

What did the Mariner 9 discover?

A

Valles Marineris (large canyon) and large volcanoes on Mars

19
Q

What did Viking 1 and Viking 2 do?

A

they photographed the surface of Mars

20
Q

What did Global Surveyor do?

A

it examined the walls of Valles Marineris (large canyon on Mars)

21
Q

What did the Odyssey do?

A

it provided evidence for water as frost beneath a thin layer of soil on Mars

22
Q

What did Mars Pathfinder and it’s rover, Sojourner, do?

A

gathered data about how iron in Mars’s crust may have been leached out by groundwater

23
Q

Where is Curiosity land?

A

the Gale Crater

24
Q

What were Curiosity’s goals?

A
  • investigate climate and geology
  • collect evidence on microbial life
  • planetary habitability studies

Science Chapter 30 (7 decks)

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