Anyway, he has been begging for science "tricks", so I'm aiming to do one a week or so, just for fun. You will all be tortured with the details, nyah ha ha!
Experiment 1. Plants having a drink.
2. Check back over the next couple of hours to see the coloured water start to move through the plants. These flowers had colour at the tips of the petals after only 1 hour. The colours deepened and spread over the following day.
We chatted about what we saw happening. Things that the kids noticed were that it was harder to see the yellow (so we talked about contrasting colours), that the colour was first visible at the tips of the petals (so they drink right up to the top Mum!), that the colours are in stripes (the veins are parallel in these flowers). We also noticed that some of the petals were barely coloured at all. Why is that? I'm guessing that these petals will be the first to fall off, and they didn't show the colour because the plant has already started shutting off those veins. I have no idea if I'm right about that or not. When we looked closely we noticed that the middle of the daisy was showing the colour too, right to the tops of the stamens. Rather pretty I thought.