Extruding

This activity was designed for blind learners, but all types of learners can explore the process of extrusion used to produce pipes and wires in industry. Tooth paste and frostings are examples of extruded materials. Commercially prepared frosting tubes replicate the process of extruding a softened material such as plastic. The material then hardens into a shape determined by the shape of the opening through which it has been extruded. Using tubes of frosting and different frosting tips, learners can kinesthetically experience how materials such as plastic are formed in a factory.