Solve these clues to fill the grid.
- Any period of seven consecutive days
- 2 Across
- A period of 100 years
- 6 Across
- The lowest temperature theoretically attainable
- 8 Across
- An instance or single occasion for some event
- 10 Across
- German physicist who invented the mercury thermometer and developed the scale of temperature
- 11 Across
- Time for Earth to make a complete rotation on its axis
- 12 Across
- How loud something is, or how much space it fills
- 13 Across
- A period of time equal to 1/24th of a day
- 14 Across
- That which has mass and occupies space
- 15 Across
- The extent of something from side to side
- 16 Across
- The basic unit of length adopted under the Systeme International d'Unites
- 1 Down
- How hot or cold something is
- 3 Down
- Capability to perform or produce
- 4 Down
- How much matter something contains
- 5 Down
- A position on a scale of intensity or amount or quality (plural)
- 7 Down
- State of matter that flows like water
- 9 Down