Educational audiobook for children that talks about the properties of materials. The most important properties of materials are strength, rigidity, impermeability, transparency, elasticity, plasticity, flexibility, brittleness, solubility, magnetism, thermal conductivity and buoyancy. Knowing these properties will help students to understand the characteristics of different materials and have a better understanding of the world around them. This is a very useful and interesting resource for children to learn about materials. It is an excellent audiobook for infant, primary and bilingual education.