Solve these clues to fill the grid.
- Frozen water
- 2 Across
- Clear liquid we drink that falls as rain
- 3 Across
- A naturally occurring or synthetic compound consisting of large molecules made up of a linked (plural)
- 6 Across
- The star our planet orbits
- 10 Across
- An increase in the density of something
- 11 Across
- A fourth state of matter distinct from solid or liquid or gas and present in stars and fusion
- 14 Across
- State of matter with a fixed shape
- 15 Across
- Abrupt electric discharge from cloud to cloud or from cloud to earth accompanied by the emission
- 16 Across
- A thin fog with condensation near the ground
- 1 Down
- The power to do work or make things move
- 4 Down
- Twinkling lights in the night sky
- 5 Down
- The simplest structural unit of an element or compound (plural)
- 7 Down
- The state of being combined into one body
- 8 Down
- A change directly from the solid to the gaseous state without becoming liquid
- 9 Down
- State of matter that fills any space, like air
- 12 Down
- State of matter that flows like water
- 13 Down