"Chemistry": HTML5 Crossword

Across

2. Piece of glass used with a microscope (5)
4. Representation of a substance using symbols (7)
5. Hand protection (6)
6. Negatively charged particle (8)
8. Combination of two or more atoms (8)
9. Any liquid, solid or gas (8)
14. Positively charged particle (6)
15. Cylindrical glass container (6)

Down

1. Negatively charged ion (7)
2. Used to weigh substances (5)
3. Eye protection (7)
7. Might be calibrated in either Fahrenheit or Centigrade (11)
10. Two or more atoms joined together (8)
11. Bunsen _ _ _ _ _ _ (6)
12. Paper used to measure pH (6)
13. cu (6)