O's drawing: "Fahn: NO! Win: YES!!"
O.'s writing explains the experiment: "Fan blows sunflower. But does not blow. Next time we have a windy day we will test it by putting the sunflower seed on the ground and the wind blows it."
T.'s drawing shows a fan lifting seeds with the help of the ramp: "It's moving forward on the runway and then it gets a little bump and then it flies up and drops off. This is the experiment we just did"; as well as ideas for continuing the experiment: "My idea was to put the seed in the grass so that the wind will go under it and pick it up because the only way it will go up in the air is if the wind goes under it. My other idea is to make a hang-glider for the seed."
T. (with his hang-glider) and others (with the ramp) are thinking of ways to force a sunflower seed into flight. This sparks our thinking about milkweed, dandelions, cottonwood and other plants that naturally provide hang-glider-type vehicles for their seeds.
Do the children know about these seeds but simply want to understand whether sunflower seeds blow away as well? Or are they so invested in the plot of their story that they are not stopping to consider the physical differences between seeds that are made to blow on the wind and seeds that are not?
These questions have been the launching point for a continuing investigation on the movement of all types of seeds.
-Posted by Mauren Campbell