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Earth Science > Third Quiz > Flashcards

Third Quiz Flashcards

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1
Q

What are the terrestrial planets?

A

Mercury, Venus, Earth, and Mars

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2
Q

What are the Jovian planets?

A

Jupiter, Saturn, Uranus, and Neptune

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3
Q

What is the most obvious difference between terrestrial and Jovian planets?

A

Size

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4
Q

What makes up the interiors of planets?

A

gases, rocks, and ices

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5
Q

What makes up the atmosphere of Jovian planets?

A

Hydrogen, helium, methane, and ammonia

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6
Q

What makes up the atmosphere of terrestrial planets?

A

They are lacking

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7
Q

What is the nebula?

A

A cloud of gas and/or dust in space

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8
Q

What is the nebular theory?

A

The sun and planets formed from a rotating disk of dust and gases

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9
Q

What is Mercury known as?

A

The innermost and second smallest planet from the sun

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10
Q

What is prominent about Mercury’s surface?

A

Has cratered highlands, smooth terrain, and resemble the moon’s maria

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11
Q

What is unique about Mercury’s temperature?

A

Mercury has the greatest temperature extremes of any planet

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12
Q

Why is Venus referred to as “Earth’s twin”?

A

It is similar in size, density, mass and location

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13
Q

What is prominent about Venus’s surface?

A

It is covered in thick clouds that visible light cannot penetrate

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14
Q

What is different in Mars’s atmosphere?

A

Despite it being thin with dust storms, it causes color changes

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15
Q

What is unique about Jupiter’s size?

A

Jupiter is 2 1/2 times greater than the mass of all the other planets and moons combined

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16
Q

What is unique about The Great Spot of Jupiter?

A

It is the size of two earth circles

17
Q

In Jupiter’s satellite system, how many moons are there?

A

63 moons

18
Q

What was the story behind Jupiter’s ring system?

A

It is one of the most unexpected discoveries made by Voyager 1

19
Q

What is prominent about Saturn?

A

The system of rings

20
Q

What is another unique feature of Saturn?

A

Winds roaring at up 1500 km per hour

21
Q

What is unique about Saturn’s moon?

A

Titan is the largest moon and is bigger than Mercury

22
Q

What is Uranus’s prominent feature?

A

Axis of rotation

23
Q

What is Neptune’s prominent feature?

A

Winds exceed 1000 km per hour and is one of the windiest

24
Q

What is unique about pluto?

A

It’s orbit is highly eccentric and occasionally travels inside Neptune

25
Q

What is an asteroid?

A

A small rocky body whose diameter can range from a few hundred km to less than a km

26
Q

Where do most asteroids lie in?

A

Between the orbits of Jupiter and Neptune

27
Q

What are comets made of?

A

Rocky and metallic pieces held together by frozen gases

28
Q

Where do comets generally revolve?

A

About the sun in elongated orbits

29
Q

What do some comets develop?

A

A tail that extends for millions of km

30
Q

What is the most famous short-period comet?

A

Hailey with 76 years of orbit

31
Q

What is the Kuiper belt?

A

Most move in nearly circular orbits that lie roughly in the same plane as planets

32
Q

What is the Oort cloud?

A

Long orbit period that is distributed in all directions which formed a spherical shell

33
Q

What is a meteoroid?

A

A small solid particle that travels through space

34
Q

What is a meteor?

A

When a meteoroid enters earth atmosphere and burns up

35
Q

What is a meteorite?

A

Any portion of a meteoroid that reaches earth’s surface

Earth Science (4 decks)

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