"Little Free Libraries" Puzzle

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Across
  1. 3. form a picture or idea in your mind.
  2. 5. the ability to remember things.
  3. 6. to keep trying, even if it's hard.
  4. 10. more than one; many.
  5. 11. short saying that tells an important idea.
  6. 12. special things that are valuable to someone.
Down
  1. 1. find something new or learn something you didn't know.
  2. 2. to build or put something together.
  3. 4. to put something new in the place of another.
  4. 7. a person who helps without getting paid.
  5. 8. to show up or become visible.
  6. 9. hurt or harmed.