crossword puzzle anchor activity

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Across
  1. 2. Sunlight that is highly concentrated or focused; causes summer
  2. 5. Sunlight that has low concentration or is spread across a large area; causes winter
  3. 7. the lit-up part of the Moon grows from 50.1% to 99.9%
  4. 8. occurs when the illumination of the Moon decreases from 49.9% to 0.1%
  5. 10. a phenomenon whereby the moon appears bluish owing to smoke or dust particles in the atmosphere.
  6. 11. The ____ is Earth's only natural satellite
  7. 13. the season after winter and before
  8. 14. between a half-moon and full moon.
  9. 16. 90 degrees away from the sun in the sky and is half-illuminated from our point of view
  10. 19. when the opposite half of the Moon is illuminated compared to the First Quarter.
  11. 22. the season after summer
  12. 23. the planet on which we live; the world.
  13. 24. An imaginary circle around the middle of the earth, halfway between the North Pole and the South Pole
  14. 27. Earth has seasons because because its axis is tilted as it moves around the sun.
  15. 29. one half of the earth
  16. 31. The movement of an object around another object
  17. 32. an intermediate phase of the Moon, which starts after the New Moon and lasts until the First Quarter
Down
  1. 1. distance north or south of the Equator, measured in degrees
  2. 3. A lunar eclipse occurs when the Moon moves into the Earth's shadow.
  3. 4. is the phenomenon whereby the moon in total eclipse appears reddish in color as it is illuminated by sunlight filtered and refracted by the earth's atmosphere.
  4. 6. when the earth lies between the sun and the moon so that the moon is visible as a fully illuminated disc
  5. 9. the hemisphere north of the equator
  6. 12. An imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates
  7. 13. A solar eclipse occurs when the Moon passes between Earth and the Sun
  8. 15. the half of the Earth south of the equator
  9. 17. The Sun is the star at the center of the Solar System. It is a nearly perfect ball of hot plasma
  10. 18. the coldest season of the year
  11. 20. a moon that gets more sunlight on it as the days go by
  12. 21. the warmest season of the year
  13. 25. A force of attraction between objects that is due to their masses.
  14. 26. 23.5 degrees
  15. 28. the lunar disk is not visible to the unaided eye
  16. 30. The spinning of Earth on its axis