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55 Cards in this Set
- Front
- Back
mercury is ---- miles from the sun at it's closest, and ---- at it's farthest.
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46 and 70 million
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mercury orbits the sun every ---- days.
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88 days.
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Mercury rotates on it's axis every ---- days. (hint: also known as the day length).
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59 days
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Mercury has a small atmosphere due to what?
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it's small size and lack of gravity to hold on to it.
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mercury has what kind of terrain?
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heavily cratered with regions of smooth plains.
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Mercury has how many moons?
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none.
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when can Mercury be seen in the sky?
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low in the western sky just after sunset, or in the eastern sky right before sun rise.
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Venus is the --- planet from the sun.
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second
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How does Venus rotate?
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slow and in a retrograde motion.
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An average day on Venus is what?
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243 Earth days
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Venus's year is how long?
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225 Earth days.
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How many moons does Venus have?
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none
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why is Venus the hottest planet in the solar system?
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It's thick sulfuric atmosphere causes an intense greenhouse effect that super heats the planet.
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what is a popular nickname for Venus?
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Earth's sister (due to their similarities in size)
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Mar's day is how long?
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24 hours and 29 minutes.
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Mar's year is how long?
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687 days
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How many moons does Mars have
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2: Phobos and Deimos
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what is the highest point on mars
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A dormant volcano named olympus mons which is also the biggest volcano in the solar system.
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Jupiter is the biggest planet with a size of what?
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483,780,000 miles.
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Jupiter rotates the sun every...?
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12 Earth years (4,333 days)
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Jupiter's day is how long?
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9 hours and 56 minutes
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Jupiter's gravity is ----- times that of Earth?
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2.4
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Jupiter has rings.
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It's true.
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What is Jupiter's great red spot?
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It is a giant storm on Jupiter that is big enough to fit two earths.
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Jupiter has how many moons?
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63
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What are Jupiter's 4 largest moons?
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IO, Europa, Ganymede, and Callisto
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How many of Jupiter's moons actually have names?
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16
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Jupiter is said to be a what?
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failed star.
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Saturn is the ---- largest palanet.
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2nd
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Saturn is most famous for it's...?
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rings. (there are 7 main ones with smaller ones in between.)
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Saturn is how far from the sun?
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840,040,000 miles at it's closest and 941,070,000 miles at it's farthest.
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A year on Saturn is how long?
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29 and a half earth years.
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A day on Saturn is how long?
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10 hours and 39 minutes
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Saturn was discovered in...?
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1610
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Saturn has how many moons?
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60
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The largest of Saturn's moons is what?
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Titan
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What is the mythology of Saturn
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was the Roman god of agriculture and son of Gaia and Uranus
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Uranus is how far from the sun?
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1,784,860,000 miles
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A year on Uranus is how long?
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84 earth years.
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A day on Uranus is how long.
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17 hours and 14 minutes.
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How does Uranus rotate?
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on it's side
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Uranus has how many moons?
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21
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Uranus was discovered when?
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1781
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Neptune is located how far from the sun?
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2,793,100,000 miles.
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Neptune has how many moons?
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11
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A year on Neptune is how long?
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165 earth years
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A day on Neptune is how long?
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16 hours and 17 minutes.
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Neptune has rings.
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it's true
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Neptune is the planet with the great....?
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dark spot. (it vanished in 1994
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Every 248 years what interesting fact occurs with Uranus's orbit.
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It changes positions with Pluto as the outermost planet for 20 years.
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Pluto used to be which planet from the sun?
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the ninth
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Pluto has how man moons?
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3: Charon, Nix, and Hydra
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When was pluto discovered?
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1930
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Pluto is how far from the sun?
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3,647,240,000 miles
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Pluto is said to be part of what solar feature?
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The Kuiper belt.
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