1. oak   castaño   arce   haya   roble   Hint Half-n-half Clue   2. birch   abeto   abedul   pino   roble   Half-n-half Clue   3. pine   arce   álamo   pino   abedul   Half-n-half Clue   4. fir   abeto   álamo   arce   abedul   Half-n-half Clue   5. poplar   arce   roble   álamo   castaño   Half-n-half Clue   6. maple   arce   abeto   cedro   pino   Half-n-half Clue   7. cedar   abedul   arce   cedro   roble   Half-n-half Clue