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Pros and Cons of Plastics,What do telephones, carpets, and even fleece we wear have in common? (Fig. 14.1) They all contain plastic. We store our food in it, drink water from it, and even brush our teeth with it. It’s cheap, convenient, and versatile?– but how much do we really know about this wonder material? (Fig. 14.2).

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Corrosion,The deterioration of a material as a result of an interaction between the environment and the material defines a process known as corrosion.

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Iron Wire Lab and Crystal Models,When changes occur, oftentimes the change is visible. But there are changes that occur while the physical property remains unaltered. Materials that experience phase changes, transitioning from BCC to FCC, may have experienced a transition from a ferromagnetic state to a paramagnetic state without altering the appearance of the material.

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