cial and tial suffixes

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Across
  1. 2. secret, private
  2. 4. vital, the most important
  3. 5. not real, man made
  4. 7. on the surface, not very deep
  5. 9. meaning very cold, found in the Arctic and Antarctic
Down
  1. 1. where people live, a home
  2. 3. full of promise, full of hope
  3. 6. the first of something
  4. 7. something that is really important
  5. 8. meeting with people and enjoying talking to them