|
Across
| 1 | | The splitting of water by use of
electricity (12) |
| 6 | | A substance that turns litmus from
blue to red (4) |
| 9 | | A compound that shows by means of
a colour change whether a
substance is acidic or basic (9) |
| 12 | | This acid is present in fizzy
drinks (9) |
| 13 | | This acid is present in the
stomach to kill bacteria (12) |
| 14 | | The first stage in water treatment (9) |
|
Down
| 2 | | The chemical name for caustic soda (6,9) |
| 3 | | The pH of distilled water (5) |
| 4 | | A great vegetable to use as an
acid-base indicator (3,7) |
| 5 | | This ranges from 0 - 14 (2,5) |
| 7 | | This type of water does not easily
from a lather with soap (4) |
| 8 | | A method used to remove water
hardness (7) |
| 10 | | Where water is stored at the
second stage of water treatment (9) |
| 11 | | A substance that is neither acidic
or basic (7) |
|