Демонстрационные опыты.
Примеры демонстрационных опытов по химии и нанохимии для школьников.
5 months ago 00:20:34 1
8 months ago 00:18:23 1
8 months ago 00:10:40 1
8 months ago 00:17:38 1
8 months ago 00:17:11 4
8 months ago 00:19:08 1
8 months ago 00:04:41 1
8 months ago 00:05:17 1
8 months ago 00:06:43 1
8 months ago 00:04:06 11
8 months ago 00:15:18 1
9 months ago 00:25:09 1
9 months ago 00:19:48 1
9 months ago 00:18:33 1
9 months ago 00:11:18 1
9 months ago 00:06:58 1
9 months ago 00:19:43 1
9 months ago 00:06:36 510
![— демонстрация работы [PRESET ]](https://sun9-53.userapi.com/7045ZUNP2iDmgM6wjKHp8A4mGik9bDVzlk8rzw/rHL46CqfH0Y.jpg)
9 months ago 00:54:36 1
9 months ago 00:07:11 1
9 months ago 00:02:16 1
9 months ago 00:14:51 1
9 months ago 00:06:04 379
![SALUKI / Скриптонит — демонстрация работы [PRESET ]](https://sun9-1.userapi.com/ugUsog2YdC-AbAw298zl32mQBhBcuMwu_Zst5g/ZLlykFwduYg.jpg)
9 months ago 00:09:05 78
