| 1 | Providing information about importance of water |
| 2 | Providing information about classification of water |
| 3 | Teaching water pollution |
| 4 | Teaching clean of water |
| 5 | Providing information about artificial cleaning |
| 6 | Explaining the components of the water |
| 7 | Providing information about elimination of errors in water |
| 8 | Expressing hygienic examination of water |
| 9 | Expressing physical examination of the water |
| 10 | Expressing chemical examination of water |
| 11 | Expressing bacteriological examination of water |