1) What is the sun? a) planet b) comet c) star d) asteroid 2) What is the center of the solar system? a) Earth b) the sun c) the moon d) black hole 3) Which gas is the sun MOSTLY made of? a) oxygen b) helium c) hydrogen d) carbon 4) Which is the biggest? a) the sun b) the moon c) Earth d) Jupiter 5) What is rotation? a) Earth going around the sun b) Earth turning on its axis 6) How long it one rotation of Earth? a) 24 hours/ 1 day b) 365 days/ 1 year c) 7 days/ 1 week d) 4 weeks/ 1 month 7) What is revolution? a) Earth going around the sun b) Earth turning on its axis 8) How long is one revolution of Earth? a) 24 hours/ 1 day b) 365 days/ 1 year c) 7 days/ 1 week d) 4 weeks/ 1 month 9) What does Earth's rotation cause? a) day and night b) months of the year c) the seasons 10) What does Earth's revolution cause? a) day and night b) months of the year c) the seasons 11) What is a satellite? a) a celestial body that orbits around the sun b) a celestial body that orbits around a planet c) a celestial body that orbits a moon 12) What is the moon's translation? a) when the moon moves around the earth b) when the moon rotates on its axis 13) How long is one translation of the moon? a) 7 days b) 1 day c) 1 year d) 28 days 14) What is the moon's rotation? a) when the moon moves around the earth b) when the moon rotates on its axis c) when the moon orbits the sun 15) How long is one rotation of the moon? a) 7 days b) 1 day c) 1 year d) 28 days 16) How many lunar phases are there? a) 3 b) 4 c) 5 d) 7 17) Which is smaller? a) the earth b) the moon 18) Which does NOT move around the sun? a) comets b) planets c) asteroids d) black holes 19) How many planets are there in our solar system? a) 8 b) 7 c) 9 20) Which planet is closest to the sun? a) Earth b) Venus c) Mercury d) Mars 21) Which planet is the largest? a) Saturn b) Jupiter c) Venus d) Uranus 22) Which planet has rings? a) Saturn b) Neptune c) Jupiter d) Venus 23) What is the journey that planets make around the sun called? a) rotation b) translation c) orbit d) cycle 24) What is Earth's natural satellite? a) Mars b) the sun c) a comet d) the moon 25) What does the moon create on Earth? a) day and night b) the tides of the ocean c) the seasons d) shadows 26) Which two things allow life on Earth? a) oxygen, sunlight b) water, oxygen c) atmosphere, water d) atmosphere, sunlight

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