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The Earth, the Moon, and the Sun

The Earth, the Moon, and the Sun. What do we call a scientist who studies the planets and stars?. astronomer. How long does it take for the Earth to revolve around the sun?. 365 1/4 days. How long does it take for the Earth to rotate on its axis?. 24 hours.

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The Earth, the Moon, and the Sun

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  1. The Earth, the Moon, and the Sun

  2. What do we call a scientist who studies the planets and stars? astronomer

  3. How long does it take for the Earth to revolve around the sun? 365 1/4 days

  4. How long does it take for the Earth to rotate on its axis? 24 hours

  5. What does the tilt of the earth on its axis cause? the seasons

  6. More direct rays from the sun cause ________. summer Slanted rays from the sun cause _______. winter

  7. Earth is the _______ planet from the sun. third

  8. Earth’s surface is constantly _________. changing Earth’s surface is three-fourths _______. water

  9. What 2 things make it possible for there to be life on Earth? Water & Air

  10. SUN What is at the center of our solar system?

  11. How much bigger is the sun’s diameter than the Earth’s? 110 times

  12. How far away is the sun from the Earth? 92 - 95 million miles

  13. What is the sun made of? Hot, glowing gases

  14. What are the dark patches visible on the sun’s surface? Sunspots

  15. the moon What is the Earth’s only natural satellite?

  16. How far away is the moon from the Earth? 250,000 miles

  17. How big is the moon compared to the Earth? One-fourth the size of the Earth

  18. The moon has extreme temperatures. This means it is very ______ in the daytime and very ______ at night. hot cold

  19. Why is it not possible for there to be life on the moon? No air & no water

  20. What is the moon’s surface covered with? Craters, mountains, and flat plains

  21. We learned about the moon when: • Astronauts collected rocks and soil from the moon • Astronauts set up experiments on the moon

  22. What is the moon phase when we see all of the lighted side of the moon? full

  23. What is the moon phase when all of the lighted side of the moon is turned away from us? new

  24. When the moon is ________ we see more of the lighted side each night. waxing When the moon is _______ we see less of the lighted side each night. waning

  25. During which moon phase do we see only a very small part of the lighted side? Crescent

  26. During which phase do we see almost all of the lighted side of the moon? Gibbous

  27. During which moon phase is the moon between the Earth and the sun? New Moon

  28. Who believed in an earth-centered solar system? Aristotle and Ptolemy

  29. Who believed in a sun-centered solar system? Galileo and Copernicus

  30. Who built the first telescope? Galileo

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