Measuring - distance, time,

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Across
  1. 3. The SI unit for distance
  2. 4. ________ months have exactly 30 days
  3. 7. used to measure small straight objects
  4. 8. a ________ can be used to measure someone's height
Down
  1. 1. there are _________ minutes in half an hour
  2. 2. used to measure large distances
  3. 5. there are _______ centimeters in a meter
  4. 6. there are ________ days in a week
  5. 9. there are ______ seconds in one minute