Lesson Notes By Weeks and Term v4 - SHS 3
Properties of Materials
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Properties of Materials
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Subject: Manufacturing Engineering
Class: SHS 3
Term: 1st Term
Week: 1
Grade code: 1.1.1.LI.2
Strand code: 1
Sub-strand code: 2
Content standard code: 1.1.1.CS.2
Indicator code: 1.1.1.LI.2
Theme: Materials for Manufacturing
Subtheme: Properties of Materials
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This lesson explores the fascinating relationship between materials and their uses in our daily lives. From the Kente cloth we wear for festivals to the concrete blocks used to build our homes and the smartphones we use to connect with family, every object is made from a specific material chosen for a reason. Understanding why certain materials are used for certain jobs is a fundamental skill for any future engineer or manufacturer in Ghana. This knowledge helps us make better decisions, innovate with new products, and appreciate the world of manufacturing around us, from the workshops in Suame Magazine to the food processing factories in Tema.
Introduction: The Link Between a Material, its Properties, and its Application
Before we start grouping materials, we must understand the fundamental principle: Materials are chosen for a job based on their properties. Material: The substance or matter from which a thing is or can be made. (e.g., wood, plastic, steel, cotton). Property: A characteristic or quality of a material. (e.g., Is it strong? Is it flexible? Does it conduct electricity? Is it transparent?). Application: The specific use or purpose of a product made from the material. (e.g., a car door, a cooking pot, a shirt).
The core idea is: The Properties of a material determine its suitable Application. An engineer's job is to match the right material to the right application.
We will now explore this concept across six major industries, many of which are vital to Ghana's economy. A. The Clothing & Textile Industry