It looks like our window-pane has become a little garden and our youngest son is the gardener! According to him this green stuff shall become delicious tomatoes. First they have to grow a little before he will plant them outside in our garden. There the tomatoes will really start growing and they will turn out to be red and delicious.
Then there is that other stuff growing on cotton buds. He calls it cress and says it is delicious in sandwiches and salads. We already told him to eat it himself as he is such a good eater (but not!!!). He doesn't even eat tomatoes so why he is growing all these things I don't know except that he is enjoying himself and taking real good care of his little garden.