General knowledge and associationts

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Across
  1. 2. Hot, Cold, weather
  2. 5. Sportsman, player, contestant
  3. 8. Nature, mountain πŸ”οΈ, fire πŸ”₯
  4. 9. Space, stars, universe
  5. 11. American symbol, animal
  6. 12. LabπŸ§ͺ test, chemisty
  7. 15. Bones🦴, body,structure
  8. 16. Gotham city, mask, hero
  9. 17. Money,people, safe
  10. 18. Map, school, Earth 🌍
  11. 19. Students hate
Down
  1. 1. Food, dinner, money, m*n*
  2. 3. Small, chemistry, biology
  3. 4. Killing, detective, Italian
  4. 6. 2002, chess, sport
  5. 7. American holiday, autumn
  6. 10. Rock πŸͺ¨, space,hard
  7. 12. Adrenaline, coffee, chocolate
  8. 13. Nature,water, wind
  9. 14. Blue, Planet 🌎, movie