General knowledge

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Across
  1. 2. Hot drink made from beans
  2. 5. Opposite of "cold"
  3. 8. Shape with four equal sides
  4. 9. The planet we live on
  5. 10. Large body of saltwater
  6. 13. Animal known as man's best friend
  7. 14. A flying mammal often found in caves
  8. 15. Opposite of "happy"
  9. 16. Sharp kitchen tool
  10. 17. Season after summer
  11. 18. Home of birds
Down
  1. 1. Green plant that grows in grass, eaten by rabbits
  2. 3. Earth's natural satellite
  3. 4. Animals like tigers and lions are known as this
  4. 6. Material used to write on a blackboard
  5. 7. Type of book where events are made up
  6. 11. To finish or complete something
  7. 12. A bright, fiery object in the sky, visible at night
  8. 14. Insects that make honey
  9. 15. Comes down from clouds in winter, very cold