Planets Flashcards

1
Q

What are the eight planets and their location from the Sun?

A

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Saturn

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2
Q

What are some interesting facts about Mercury? (4)

A
  • it lacks an atmosphere which causes extreme heating and cooling
  • it is the closest to the Sun
  • it is only visible at dusk and dawn
  • it has craters on its surface
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3
Q

What are some interesting facts about Venus? (4)

A
  • it has huge volcanoes
  • it is the brightest object after the Sun and the Moon
  • it is Earth’s sister because of its similar size and composition
  • it is hotter than Mercury because it has a runaway greenhouse effect
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4
Q

What are some interesting facts about Earth? (3)

A
  • 70% of its surface is Earth; the only planet with water in three forms
  • its ozone protects it from the Sun
  • soil supports life
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5
Q

What are some interesting facts about Mars? (3)

A
  • red planet (rusty soil-iron in crust)
  • water has been found here
  • has a thin atmosphere of carbon dioxide
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6
Q

What are some interesting facts about Jupiter? (3)

A
  • its coloured bands are spinning belts of gas
  • its red spot is a giant hurricane (visible for over 500 years)
  • its mass is greater than all the other planets combined
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7
Q

What are some interesting facts about Saturn? (3)

A
  • less dense than water (it could float on water)
  • its rings are made of ice and rock
  • second largest planet
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8
Q

What are some interesting facts about Uranus? (3)

A
  • its atmosphere is mostly hydrogen
  • its blue-green colour is from methane on the atmosphere
  • it is flipped on its side; it looks like its rolling around in orbit
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9
Q

What are some interesting facts about Neptune? (3)

A
  • appears blue because of methane gas
  • it surface gravity is almost Earth like
  • it is the coldest planet and has the strongest winds
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10
Q

What is the biggest planet?

A

Jupiter; 11.2 times the size of Earth

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11
Q

What is the smallest planet?

A

Mercury; 0.4

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12
Q

Which planet has the most and least moons?

A

Mercury and Venus don’t have any moons.

Jupiter has 63 moons.

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13
Q

Which planet has the longest and shortest orbital period?

A

Mercury 0.24

Neptune 165

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14
Q

Which planet has the longest and shortest rotational period?

A

Jupiter 9.85 hours

Venus 243 Earth days

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15
Q

Which planet has the biggest and smallest diameter?

A

Mercury 2/5 of the diameter of Earth

Jupiter 11x

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16
Q

Which planet is furthest and closest to/from the Sun?

A

Mercury 58 million km

Neptune 4497 million km