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Science > Solar System > Flashcards

Solar System Flashcards

1
Q

What is the smallest planet?

A

Mercury

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2
Q

What is the closest planet to the Sun?

A

Mercury

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3
Q

What is the fastest planet?

A

Mercury - 88 days to travel around the sun

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4
Q

What are the 4 terrestrial planets?

A
  1. Mercury
  2. Venus
  3. Earth
  4. Mars
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5
Q

How many moons does Mercury have?

A

0

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6
Q

How many rings does Mercury have?

A

0

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7
Q

What is the 2nd planet from the Sun?

A

Venus

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8
Q

What is the hottest planet?

A

Venus

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9
Q

How far is Earth from the Sun?

A

Nearly 93 million miles

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10
Q

How long does it take Earth to fully orbit around the sun?

A

365 days

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11
Q

How many moons does Earth have?

A

1

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12
Q

How many rings does Earth have?

A

0

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13
Q

Earth’s atmosphere is composed of …

A
  1. 78% nitrogen
  2. 21% oxygen
  3. 0.9% argon
  4. 0.1% other gases
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14
Q

What is the 4th planet from the Sun?

A

Mars

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15
Q

How many moons does Mars have?

A

2 - Phobos and Deimos

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16
Q
A

Mars

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17
Q
A

Venus

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18
Q
A

Earth

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19
Q
A

Mercury

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21
Q

What is the largest planet?

A

Jupiter
*could fit 11 Earths

22
Q
23
Q

What is the 5th planet from the Sun?

24
Q

Jupiter’s atmosphere is made up mostly of …

A
  1. Hydrogen (H2)
  2. Helium (He)
25
Q

What is the 6th planet from the Sun?

26
Q

Saturn’s atmosphere is made up mostly of …

A
  1. Hydrogen (H2)
  2. Helium (He)
27
Q

How many rings does Saturn have?

28
Q

How many moons does Saturn have?

A

53 known moons with an additional 29 moons awaiting confirmation of their discovery - total of 82

29
Q
30
Q

How many moons does Jupiter have?

A

More than 75

31
Q

How many rings does Jupiter have?

32
Q

What are the 2 gas giants?

A
  1. Jupiter
  2. Saturn
33
Q
34
Q

What is the 7th planet from the Sun?

35
Q

How many moons does Uranus have?

A

27 - all named after characters from the works of William Shakespeare and Alexander Pope

36
Q

How many rings does Uranus have?

37
Q

Uranus has an atmosphere made mostly of …

A

molecular hydrogen and atomic helium (with a small amount of methane)

38
Q
39
Q

What are the 2 ice giants?

A
  1. Uranus
  2. Neptune
40
Q

What is the farthest planet from the Sun?

41
Q

Neptune’s atmosphere is made up mostly of …

A

molecular hydrogen, atomic helium and methane

42
Q

How many moons does Neptune have?

A

14 - named after sea gods and nymphs in Greek mythology

43
Q

How many rings does Neptune have?

44
Q

How far is Earth from the Moon?

A

239K miles

45
Q

Where is the only place that humans have set foot (besides Earth)?

46
Q

Who was the first man on the Moon?

A

Apollo 11 astronaut Neil Armstrong - July 1969

47
Q
48
Q

The Solar System

Science (2 decks)

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