This week the children have joined a free on-line science course from FutureLearn. Basic Science - Understanding Experiments has just started and you can still join in.
We wanted to find out how much water is in a potato. We microwaved the potatoes in one minute intervals and plotted their weights on a graph.
|Our potatoes lost 108g of water, we used scales to find out what this amount looked like.|
R used a sweet potato and L used an ordinary potato. We didn't quite get to the point where all the water was driven off. R's sweet potato lost 60% of it's volume in water and L's potato lost 53%. We would expect the potatoes to lose more water if we ran the experiment longer; they were still a little juicy.