VOCABULARY CROSSWORD

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Across
  1. 1. (n)the possibility or opportunity to do something
  2. 6. (adj)nervous ,worried
  3. 7. (n)opinion or feeling about something
  4. 8. (v)to make something clear and easy to understand
  5. 9. (n)medicines and other things used to cure an illness
Down
  1. 2. (n)dangerous chemical in tobacco
  2. 3. (n)an important discovery or new idea
  3. 4. (adj)the biological process of passing things from parents to children
  4. 5. (v)stop something before it finishes