Countable Vs Uncountable Nouns

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Across
  1. 3. A bale of
  2. 4. A bushel of
  3. 5. A loaf of
  4. 8. A speck of
Down
  1. 1. A bar of
  2. 2. A constellation of
  3. 6. A round of
  4. 7. A pail of