"Chemistry": HTML5 Crossword

Across

3. Hand protection (6)
5. Negatively charged ion (7)
9. cu (6)
11. Piece of glass used with a microscope (5)
12. Might be calibrated in either Fahrenheit or Centigrade (11)
14. Eye protection (7)
15. Bunsen _ _ _ _ _ _ (6)
16. Cylindrical glass container (6)

Down

1. Used to weigh substances (5)
2. Combination of two or more atoms (8)
4. Paper used to measure pH (6)
6. Negatively charged particle (8)
7. Two or more atoms joined together (8)
8. Positively charged particle (6)
10. Any liquid, solid or gas (8)
13. Representation of a substance using symbols (7)