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Earth or Mars?
What do you know about these two planets?
Various Sources, among others: Universe Today, Nasa, Wikipedia, Planet Wissen, Space.com, ETH Zurich
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Last updated: January 12, 2023
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| First submitted | August 7, 2022 |
| Times taken | 54 |
| Average score | 80.0% | Report this quiz | Report |
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1.
Is closer to the sun
Earth
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Mars
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Earth: 150 million km. Mars: 228 million km.
2.
Is larger
Earth
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Mars
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Earth: 12,740 km in diameter. Mars: 6780 km.
3.
Its nickname includes a colour
Earth
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Mars
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both
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Earth: The blue planet. Mars: The red planet.
4.
Has more moons
Earth
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Mars
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Earth: The Moon. Mars: Phobos, Deimos.
5.
Has a longer day
Earth
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Mars
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Earth: 24 hours. Mars: 24 hours and 39 minutes.
6.
Has an atmosphere
Earth
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Mars
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both
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The atmosphere of Mars is much thinner than Earth's though.
7.
Has the highest mountain
Earth
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Mars
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Olympus Mons on Mars has a height of about 22 km and is the highest mountain in the solar system.
8.
Humans have walked on it
Earth
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Mars
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both
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9.
Has the highest temperature
Earth
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Mars
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Earth: 56 degrees C. Mars: 21 degrees C.
10.
Takes longer to orbit around the sun
Earth
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Mars
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Earth: 365.25 days. Mars: 687 days.
11.
Is named after a Roman god
Earth
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Mars
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both
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Earth: From Old English word "eorþe" (ground). Mars: Roman god of war.
12.
Has polar ice caps
Earth
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Mars
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both
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13.
Has the higher proportion of iron in its mantle
Earth
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Mars
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14.
Is celebrated on April 22
Earth
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Mars
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"Earth day", first held in 1970, is observed by people in more than 180 countries.
15.
Has a well known chocolate bar named after it
Earth
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Mars
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both
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