Solve these clues to fill the grid.
- An individual or group or structure or other entity regarded as a structural or functional
- 2 Across
- A rule one ___ long
- 5 Across
- Staying steady without falling over
- 7 Across
- A metric unit of weight equal to one thousandth of a kilogram
- 8 Across
- Any maneuver made as part of progress toward a goal
- 9 Across
- Swedish astronomer who devised the centigrade thermometer
- 11 Across
- How hot or cold something is
- 14 Across
- How much matter something contains
- 15 Across
- A metric unit of capacity, formerly defined as the volume of one kilogram of pure water under
- 16 Across
- The linear extent in space from one end to the other
- 1 Down
- A short performance that is part of a longer program
- 3 Down
- How loud something is, or how much space it fills
- 4 Down
- Measuring instrument for measuring temperature
- 6 Down
- The basic unit of length adopted under the Systeme International d'Unites
- 10 Down
- The vast area beyond Earth's atmosphere
- 12 Down
- The outermost level of the land or sea
- 13 Down