Solve these clues to fill the grid.
- A three-legged rack used for support
- 3 Across
- A substance consisting of two or more substances mixed together
- 4 Across
- A state of difficulty that needs to be resolved
- 6 Across
- Substance used in or made by chemistry
- 8 Across
- Involving risk or danger
- 9 Across
- Trauma caused by the passage of ___ current through the body
- 12 Across
- Bleached cotton cloth of plain weave used for bandages and dressings
- 14 Across
- English mathematician and physicist
- 15 Across
- A venture undertaken without regard to possible loss or injury
- 16 Across
- A gradual transition from one scene to the next
- 1 Down
- A gas ___ used in laboratories
- 2 Down
- The temporal end
- 5 Down
- A flatbottomed jar made of glass or plastic
- 7 Down
- Any maneuver made as part of progress toward a goal
- 10 Down
- A way of doing something, especially a systematic way
- 11 Down
- Being protected from harm
- 13 Down