Solve these clues to fill the grid.
- A flatbottomed jar made of glass or plastic
- 2 Across
- A gradual transition from one scene to the next
- 5 Across
- The science of matter
- 7 Across
- A workplace for the conduct of scientific research
- 10 Across
- A stable particle with positive charge equal to the negative charge of an electron
- 13 Across
- Staying steady without falling over
- 15 Across
- An elementary particle with negative charge
- 16 Across
- An elementary particle with 0 charge and mass about equal to a proton
- 1 Down
- Any of various water-soluble compounds having a sour taste and capable of turning litmus red
- 3 Down
- An abstract part of something (plural)
- 4 Down
- A substance formed by chemical union of two or more elements or ingredients in definite proportion
- 6 Down
- A measured amount of a solution of unknown concentration is added to a known volume of a second
- 8 Down
- Bottom part something stands on; a safe spot in baseball
- 9 Down
- An area in which something acts or operates or has power or control: "the range of a supersonic jet"
- 11 Down
- The smallest component of an element having the chemical properties of the element
- 12 Down
- Center of an atom or a cell
- 14 Down