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Physical Science > Chapter 30.2 > Flashcards

Chapter 30.2 Flashcards

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1
Q

How did the solar system form?

A

When a nebula collapsed

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2
Q

How long ago was the solar system formed?

A

4.6 billion years ago

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3
Q

What type of atmosphere does Mercury have?

A

Mercury has no true atmosphere

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4
Q

Which planet is Earth’s sister planet?

A

Venus

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5
Q

What type of atmosphere does Venus have?

A

Dense & hot atmosphere

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6
Q

Temperatures on Earth allow water to exist in what states?

A

Solid, liquid, gas

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7
Q

What is another name for Mars?

A

The red planet

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8
Q

Why is Mars red?

A

The iron oxide in some of the weathered rocks

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9
Q

How many moons does Mars have?

A

Two moons

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10
Q

What are the names of Mars’s Moons?

A

Phobos and Deimos

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11
Q

What does Phobos mean?

A

Fear

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12
Q

What does Deimos mean?

A

Panic

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13
Q

What was Spirit and Opportunity’s mission?

A

Find liquid water

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14
Q

What was Mars Reconnaissance Orbiter discover?

A

Sediment layering and gullies

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15
Q

What did Mariner 9 space probe discover?

A

Valles Marineris (A large canyon) Large extinct volcanoes

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16
Q

What was the mission of Viking 1&2?

A

Photographed Mars entire surface

17
Q

What did the global surveyor discover?

A

Showed that the walls of Valles Marineris have distinct layers similar to those of the Grand Canyon

18
Q

What did the Odyssey provide evidence for?

A

Provided evidence for water as frost beneath a thin layer of soil in the far northern and southern parts of Mars

19
Q

What did the Mars Pathfinder mission discover?

A

Sojourner (Rover) gathered data that indicated that iron in Mar’s crust may have been leached out by groundwater

20
Q

Where did the Curiosity rover land?

A

Gale Crater

21
Q

What were the goals of Curiosity?

A

To investigate climate and geology, collect evidence for microbial life, and the planetary habitability for future human exploration

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