Another mathematics crossword puzzle

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Across
  1. 3. nautical measure of depth equaling six feet
  2. 4. measure of time equaling ten years
  3. 8. measure of time equaling 14 days
  4. 9. American measure of volume equaling four quarts
  5. 12. English measure of volume equaling three teaspoons
  6. 14. what freezes at zero degrees Fahrenheit
  7. 16. American measure of area equaling 43,560 square feet
  8. 17. third day of the calendar week or second day of Christian week
  9. 18. term for a group of crows
Down
  1. 1. Metric measure of length equaling 3.2808 feet
  2. 2. something to kick or measure of volume equaling five gallons
  3. 3. temperature scale where water boils at 212 degrees
  4. 5. measure of time equaling 24 hours
  5. 6. proper name for the # sign
  6. 7. English measure of length equaling 5,280 feet
  7. 10. Metric measure of weight equaling 1,000 kilograms or 2,208 pounds
  8. 11. Metric measure of distance equaling 1,000 meters
  9. 13. temperature scale where water boils at 100 degrees
  10. 15. English measure of length equaling 36 inches or three feet
  11. 17. English measure of weight equaling 2,000 pounds