| Birch (Betula sp.) | | 2010-05-11 | 2010-05-04 | | Lunde Skole (Agder, Norway) |
| Birch (Betula sp.) | | 2010-05-11 | 2010-05-04 | | Lunde Skole (Agder, Norway) |
| Birch (Betula sp.) | | 2010-04-20 | 2010-04-19 | | Lunde Skole (Agder, Norway) |
| Birch (Betula sp.) | | 2010-04-20 | 2010-04-20 |  | Lunde Skole (Agder, Norway) |
| Norway Maple (Acer platanoides) | | 2010-03-12 | 2009-09-25 | | Lunde Skole (Agder, Norway) |
| Norway Maple (Acer platanoides) | | 2010-03-12 | 2009-09-10 | | Lunde Skole (Agder, Norway) |
| Norway Maple (Acer platanoides) | | 2010-03-12 | 2009-09-10 | | Lunde Skole (Agder, Norway) |
Sustain.no is provided by the Norwegian Centre for Science Education