Mystery Crossword Puzzle...

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Across
  1. 4. The world of plants, animals, and the outdoors. (N - e)
  2. 5. Being nice and caring to others. (K - s)
  3. 6. Full of fun and games. (P - l)
  4. 13. To think of something in your mind. (I - e)
  5. 14. Valuable things, often hidden. (T - e)
Down
  1. 1. Wanting to know more about something. (C - s)
  2. 2. A trip from one place to another. (J - y)
  3. 3. A large body of salt water. (O - n)
  4. 7. A fun and exciting experience. (A - e)
  5. 8. To show courage or not be afraid. (B - e)
  6. 9. Something that is hard to understand or explain. (M - s)
  7. 10. To speak very softly. (W - r)
  8. 11. A person you like and spend time with. (F - d)
  9. 12. A colorful arc in the sky after rain. (R - w)