Science

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Across
  1. 1. When the Earth is closest to the sun
  2. 4. What hot always goes to
  3. 5. When the moon gets smaller
  4. 7. When the moon gets larger
  5. 8. The transfer of heat by the movement of warmed matter
  6. 9. Moon is almost full
  7. 12. The path the earth takes around the sun
  8. 13. Our star in the solar system
  9. 17. Has almost the same diameter as Earth.
  10. 18. longest day of the year
  11. 19. Caused by the Earth's tilt
  12. 21. Uses electromagnetic rays
Down
  1. 2. Equal amount of daylight and darkness
  2. 3. The Earth turning
  3. 6. transfer of energy by direct contact of objects with different temperatures
  4. 10. What cold air does
  5. 11. Moon is completely dark
  6. 14. What hot air does
  7. 15. When the Earth is tilted toward the sun
  8. 16. Moon is just a sliver
  9. 20. Number of days it takes the earth to make one revolution