Do rivers only go downhill?
Organize and reflect on documentation After several days of water activities, in their subsequent discussions with the children, the KWL chart was revised to add:
K: Spray bottles are pumps (but we dont know why they work); some water can go up without a pump; we can make water go faster if we make it steeper; water can move dirt to make little rivers; some of our designs worked really good, but others not at all; does the water in the sink and bathtub have a pump?
W: How does a pump work? How can water go up without a pump? Do rivers only go downhill? What happens to the water in the rain barrels if they get full?
L: We need to ask the engineer to come over and explain how the rain barrels work; we can look on the Internet to find out more about pumps; maybe the engineer can tell us about pumps, too.