FOREST TREASURE

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Across
  1. 3. a substance obtained from the milk sap of certain plants
  2. 6. tree for the production of corks,
  3. 8. cake spice obtained from the dried bark
  4. 9. tree for the production of syrup
  5. 10. obtained from wood, a filler in medicines
  6. 11. fruit good for colds
  7. 13. fruit from a tree grown mainly in Mediterranean basin, serves as nuts and dried fruit
Down
  1. 1. wooden for building castles, for children
  2. 2. stretchy material obtained from rubber
  3. 4. colorless or yellow liquid, flammable, poorly soluble
  4. 5. writing material
  5. 7. headache medicine
  6. 12. tree for the production of oils used in cosmetics