The Upper School children investigated soluble and insoluble materials today by trying to dissolve several different solids into cold water such as sand, salt, flour, sugar, gravy granules and instant coffee. They made predictions about each one and worked in groups to test their ideas. The children observed and discussed what they saw happening. The most interesting and unexpected materials that turned out to be insoluble in cold water were gravy granules and salt. Next week the children would like to lead their own investigation By putting salt into different temperatures of water to observe if it’s completely soluble if it goes in hot water. 

Science - soluble and insoluble materials