Today Piwakawaka did some science. For science we got a jug of water and a hot water bottle. We also used the end of a water bottle. On the end of the water bottle there was a tube that went to the hot water bottle. The hot water bottle was put in the middle to peaces of wood. When we would hold the end of the water bottle up high the water would go into the hot water bottle. When we put the end of the water bottle closer to the ground the water in the hot water bottle would start to come out. Most of the class got to stand on the on the top peace of wood. When we would stand on the wood we would hold the end of the water bottle up high in the ear and the water would go into the hot water bottle and we would get taller. When we would put the end of the bottle down we would get shorter. We were learning all about hydraulics.