1) Which planet is closest to the Sun? a) Mercury b) Uranus c) Venus 2) How many planets are in our solar system? a) 9 b) 3 c) 8 3) The coldest planet in our solar system... a) Neptune b) Uranus c) Saturn 4) The greater the mass, the _____________ the gravity. a) weaker b) greater 5) The hottest planet... a) Venus b) Earth c) Mercury 6) The moon is... a) a large asteroid b) a natural satellite c) an artificial satellite 7) The approximate distance from Earth to the Moon a) 40,000km b) 400,000km c) 250,000km 8) The ISS is an example of... a) a natural satellite b) a space shuttle c) an artificial satellite 9) What shape is Earth? a) circle b) sphere 10) Most Ancient Greeks believed in a spherical Earth by... a) 1950 CE b) 500 BCE c) 2000BCE 11) The planet with the longest day. a) Jupiter b) Mercury c) Earth 12) Which diagram represents gravity? a) b) c) 13) Which planet has the most moons? a) Saturn b) Jupiter c) Uranus 14) How are the planets in our solar system grouped? a) metal and ice b) liquid and gas c) rocky and gas 15) The Earth is mostly covered in... a) rocks b) land c) water 16) The approximate circumference of the Earth. a) 4,000km b) 100,000km c) 40,000km 17) The average height of the ISS orbit. a) 400km b) 400,000km c) 4,000km

Our Solar System

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