Properties and Changes of the Materials

This resource is for senior high school students and includes ideas and worksheets of activities to support materials and their attributes. They cover many aspects of the present subject matter, including comparing the properties of different materials, separating the material mixture depending on the nature of the material, irreversible and reversible changes, and melting and freezing of different materials . It also includes the subject evaluation paper

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The core theory behind material science involves linking the microstructure of a material to the physical and chemical properties of its macromolecules. By understanding the microstructure and then changing it, material scientists can customize attributes and create custom or new materials with specific properties for specific applications. Material scientists are hired by companies that manufacture metal, ceramic and rubber products. They are also working on coatings (development of new coating grades) and the biopharmaceutical industry (design of prosthetic materials and implant materials to conform to human tissues). Other important areas are polymers (including biopolymers), composite materials (heterogeneous materials consisting of two or more materials), superconducting materials, graphite materials, integrated circuit chips and fuel cells.

The material can be described in various ways, for example it can be strong but brittle, and a combination of properties can determine its use. The nature of the material depends on how the material is processed, but once fired, the clay varies greatly, and the rolled newspaper is very different from the newspaper. Young children should take time to experience a simple property examination of some materials. The activities provided here are based on this experience and provide opportunities to hone research skills while addressing asset testing issues. Some materials have properties suitable for a particular application and by comparing these properties the idea is introduced that certain materials are suitable for use but other materials can function better.