Measurement crossword puzzle

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Across
  1. 2. 2 cups
  2. 4. 3 feet
  3. 7. 1000 milligrams
  4. 8. 1000 micrometers
Down
  1. 1. 1000 grams
  2. 3. 4 quarts
  3. 5. 100 centimeters
  4. 6. 86400 seconds