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Physical Science > 30.2 Vocab > Flashcards

30.2 Vocab 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

A nebula collapsed

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6
Q

When did the solar system form?

A

4.6 billion years ago

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7
Q

What is Mercury’s atmosphere like?

A

It has no true atmosphere

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8
Q

Which planet is considered Earth’s sister planet?

A

Venus

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9
Q

What is Venus’ atmosphere like?

A

Very dense and hot

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10
Q

What states can water exist in on Earth?

A

Solid, Liquid, & 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

The 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 Mars’ moons?

A

Phobos & Deimos

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15
Q

What does Phobos mean?

A

Fear

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16
Q

What does Deimos mean?

A

Panic

17
Q

What was the mission of Spirit and Opportunity?

A

To search for liquid water on Mars

18
Q

What did Mars Reconnaissance Orbiter discover on Mars?

A

Sediment layering & gullies

19
Q

What did Mariner 9 discover?

A

Valles Marineris (a large canyon) & extinct volcanoes

20
Q

What was Viking One and Two’s mission?

A

To photograph Mars’ entire surface

21
Q

What did Global Surveryor do for Mars?

A

Discovered that the Valles Marineris walls are similar to those of the Grand Canyon

22
Q

What did Mars Odyssey discover on Mars?

A

There’s water as frost beneath a thin later of soil

23
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

24
Q

Where did the Curiosity rover land?

A

The Gale Crater on Mars

25
Q

What were the rover’s goals

A

Look at Mar’s climate and geology
Collect evidence for microbial life
Study planetary habitability for future human exploration

Physical Science (9 decks)

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