1) How long does it take the Moon to orbit the Earth? a) One week b) One year c) One month d) One day 2) Which planet is the closest to the Sun? a) Mars b) Mercury c) Earth d) Venus 3) How long does it take for the Earth to orbit the Sun? a) One week b) One year c) One month d) One Day 4) Which of these is a natural satellite of the Earth? a) Hubble Telescope b) The Sun c) The Moon d) The International Space Station 5) How long does it take for the Earth to spin on its own axis? a) One week b) One year c) One month d) One day 6) What is the hottest planet in our solar system? a) Mars b) Saturn c) Venus d) Mercury 7) Which planet orbits the Sun the quickest? a) Neptune b) Mercury c) Jupiter d) Earth 8) Which planet is famous for the beautiful rings around it? a) Venus b) Mercury c) Saturn d) Mars 9) Can humans breathe normally in space as they can on the Earth? a) Yes b) No c) Only outside the spaceship d) Only inside the spaceship 10) The Sun is ... a) a star b) a satellite c) a rock d) a planet 11) What is the name of the first satellite sent to space? a) Laika b) Sputnik c) R2D2 d) Apollo 12) The "red planet" a) Earth b) Mercury c) Mars d) Venus 13) Which planet has two moons? a) Venus b) Mars c) Jupiter d) Mercury 14) Who was the first person on the Moon? a) Buzz Aldrin b) Alan Shepard c) Little Mole d) Neil Armstrong  15) Which one is the largest? a) Sun b) Saturn c) Earth d) Jupiter 16) What are the names of the two moons of Mars? a) Tom and Jerry b) Phobos and Deimos c) Donald and Daisy d) Triton and Titan 17) What planet is famous for its big red spot on it? a) Neptune b) Jupiter c) Mars d) Uranus 18) Which planet is the coldest? a) Neptune b) Uranus c) Mars d) Saturn

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