1) How many planets are in the Solar System? a) 6 b) 7 c) 8 d) 9 e) 10 f) 11 2) What former planet was reclassified as a dwarf planet in 2006? a) Mercury b) Pluto c) Ceres d) Neptune 3) What is the 3rd planet from the sun? a) Mercury b) Mars c) Venus d) Earth e) Moon f) Uranus 4) How long does it take for Earth to spin upon its axis? a) 1 day b) 7 days c) 28 days d) 31 days e) 365 days 5) How long does it take for Earth to orbit the sun? a) 1 day b) 1 week c) 1 month d) 3 months e) 1 year 6) What is the sun? a) a planet b) a comet c) an asteroid d) a star e) a constellation 7) What planet is called "the red planet"? a) Saturn b) Mars c) Neptune d) Mercury e) Venus 8) Have humans ever walked on Mars? a) yes b) no 9) What is the smallest planet in the Solar System? a) Mars b) Mercury c) Venus d) Earth e) Sun 10) What is the largest planet in the Solar System? a) Mars b) Venus c) Jupiter d) Moon 11) How many moons does Jupiter have? a) 2 b) 17 c) 27 d) 67 12) How many planets in our Solar System have rings? a) 1 b) 2 c) 3 d) 4 e) 5 f) 6

Astronomy

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