Ice melting

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Across
  1. 1. to grow well and be healthy
  2. 4. very fast
  3. 6. following the same pattern
  4. 8. process in which something turns from solid into liquid
Down
  1. 2. become smaller
  2. 3. something preserved in rock
  3. 5. dirtying, contamination
  4. 7. serious or worrying