We love it when a plan comes together! 2nd graders finished making silicone ice cube moulds in Makerspace and had so much fun in the process. The project came about while sitting in 2nd grade science class, where students were learning about states of matter. The topic was water and how it can change back-and-forth from liquid to solid. This discussion sparked the simple question, could we make ice cube moulds? The answer, a resounding yes. Each student created a CAD (computer aided design) file with a drawing of a face and a shape. Each file was 3D printed and then assembled for mould making. Students mixed equal parts to prepare the food-grade silicone and poured the mixture into cups. After the silicone was set and dry, the 3D print was taken out and voila! Ice cube mould. We filled them with water, froze them overnight and then had a chance to see the finished product. Everyone was excited to make ice cubes at home with their moulds! Perhaps they’ll get more use during the heat of the summer and will add some fun to cups for sure.