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Planets of the Solar System
Order, features and facts about the eight planets and dwarf planets.
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66 cards
- Which planet is closest to the Sun?QuestionMercury
- Second planet from the SunQuestionVenus
- Third planet from the SunQuestionEarth
- Fourth planet from the SunQuestionMars
- Fifth planet from the SunQuestionJupiter
- Sixth planet from the SunQuestionSaturn
- Seventh planet from the SunQuestionUranus
- Eighth planet from the SunQuestionNeptune
- How many planets are in our solar system?QuestionEight
- Memory trick for planet orderQuestionMy Very Educated Mother Just Served Us Noodles
- Inner (terrestrial) planetsQuestionMercury, Venus, Earth and Mars
- Outer planetsQuestionJupiter, Saturn, Uranus and Neptune
- Gas giantsQuestionJupiter and Saturn
- Ice giantsQuestionUranus and Neptune
- Which is the largest planet?QuestionJupiter
- Which is the smallest planet?QuestionMercury
- Which planet is the hottest?QuestionVenus
- Why is Venus so hot?QuestionIts thick carbon dioxide air traps heat
- Which planet is called the Red Planet?QuestionMars
- Why is Mars red?QuestionIron oxide (rust) on its surface
- Which planet has famous rings?QuestionSaturn
- Do other planets have rings?QuestionYes: Jupiter, Uranus and Neptune have fainter ones
- Which planet spins on its side?QuestionUranus
- Which planet has the Great Red Spot?QuestionJupiter
- What is the Great Red Spot?QuestionA giant storm larger than Earth, seen for hundreds of years
- Which planet has the strongest winds?QuestionNeptune
- Which planet is furthest from the Sun?QuestionNeptune
- Which planet has the longest day?QuestionVenus, which spins very slowly
- Which planet spins backward compared to most?QuestionVenus
- Which planets have no moons?QuestionMercury and Venus
- How many moons does Earth have?QuestionOne
- Which planet has the tallest volcano in the solar system?QuestionMars, Olympus Mons
- What is the largest canyon in the solar system?QuestionValles Marineris on Mars
- Which planet is less dense than water?QuestionSaturn
- What is Mercury's year length?QuestionAbout 88 Earth days
- How long is Earth's year?QuestionAbout 365 days
- How long is Mars's year?QuestionAbout 687 Earth days
- How long is Jupiter's year?QuestionAbout 12 Earth years
- How long is Saturn's year?QuestionAbout 29 Earth years
- How long is Uranus's year?QuestionAbout 84 Earth years
- How long is Neptune's year?QuestionAbout 165 Earth years
- What are Saturn's rings made of?QuestionPieces of ice and rock
- What is Jupiter mostly made of?QuestionHydrogen and helium
- What gas gives Uranus and Neptune a blue color?QuestionMethane
- Which planet is the only one with liquid water on its surface?QuestionEarth
- What does Earth's atmosphere contain mostly?QuestionNitrogen and oxygen
- What does Mars's atmosphere contain mostly?QuestionCarbon dioxide
- Which planet was discovered with a telescope in 1781?QuestionUranus
- Who discovered Uranus?QuestionWilliam Herschel
- Which planet was found by math predictions in 1846?QuestionNeptune
- Dwarf planetQuestionA round body orbiting the Sun that hasn't cleared its orbit
- Name the five officially recognized dwarf planetsQuestionCeres, Pluto, Haumea, Makemake and Eris
- When was Pluto reclassified as a dwarf planet?Question2006
- Who discovered Pluto in 1930?QuestionClyde Tombaugh
- Asteroid beltQuestionA region between Mars and Jupiter filled with rocky bodies
- Kuiper beltQuestionA region beyond Neptune with icy bodies and dwarf planets
- Oort cloudQuestionA far-off sphere of icy bodies thought to surround the solar system
- CometQuestionAn icy body that grows a glowing tail near the Sun
- AsteroidQuestionA rocky body orbiting the Sun, smaller than a planet
- MeteoroidQuestionA small piece of rock or metal in space
- MeteorQuestionThe streak of light when a meteoroid burns in the atmosphere
- MeteoriteQuestionA piece of space rock that lands on the ground
- SunQuestionThe star at the center of our solar system
- OrbitQuestionThe path an object takes around another
- Astronomical unitQuestionThe average distance from Earth to the Sun, about 150 million kilometers
- Gravity on Mars compared to EarthQuestionAbout 38 percent
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