Ceramics are non-metallic, inorganic materials that are typically made from clay and other minerals through various manufacturing processes. They are known for their strength, hardness, and ability to withstand high temperatures, which makes them useful in a wide range of applications.
Types of Ceramics
Traditional Ceramics: These include pottery, bricks, tiles, and porcelain. They are made from natural raw materials and are often formed by shaping and then firing in a kiln.
Advanced Ceramics: Also known as engineering or technical ceramics, these are produced with more precise methods and often include additional materials to enhance their properties. They are used in electronics, aerospace, medical devices, and other high-tech industries.
Properties of Ceramics
Hardness: Ceramics are extremely hard and can resist scratching and abrasion.
Brittleness: They are also brittle and can fracture under sudden impact or stress.
Heat Resistance: Many ceramics can withstand high temperatures, making them ideal for use in kilns, furnaces, and engines.
From Molecules to Organisms: Structures and Processes
Students who demonstrate understanding can:
Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.
Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.