The Grade 6 class of King's School learned how to build walls using vegetable sacks and clay composite. Fiona McCrimmon of MMAEP taught them about how much water is used to produce the materials required to build with conventional brick and cement. An interesting discussion ensued about alternative building methods which use much less water. Then the group set to work, laying a foundation of stone, filling veggie sacks with clay composite and stacking them to form walls in our outdoor classroom. It was hard work, but rewarding to see the walls growing steadily. The clay composite came from the excavation of the nearby Spring Grove Dam, a massive reservoir which was recently built in Rosetta to supply the ever growing water needs of urban areas.