Puzzle 23

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Across
  1. 3. A formal discussion on a particular topic
  2. 5. A Baltic country in Northern Europe
  3. 7. A hard, solid mineral material
  4. 10. A certificate awarded for completing a course of study
  5. 13. Related to the sea or naval forces
  6. 14. To speak or engage in conversation
  7. 15. Firm and fresh or pleasantly brittle
  8. 16. Severe weather with strong winds and often rain or snow
  9. 17. Calm, peaceful, and untroubled
  10. 18. A landlocked country in Central Asia
Down
  1. 1. A vehicle used for sliding over snow or ice
  2. 2. A place to sit
  3. 4. A major river in the Middle East
  4. 6. A writing surface used in classrooms
  5. 8. A large-scale air mass that rotates around a strong center of low pressure
  6. 9. A tall African animal with a long neck
  7. 11. A person who tends and cultivates plants
  8. 12. A circular band often worn as jewelry
  9. 15. A personal name or nickname
  10. 19. A performance or display for entertainment