From the chapter “Materials Around Us,” I learned about the various types of materials, their properties, and how these characteristics influence their uses in everyday life, helping us understand the importance of material selection.
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The choice of material for making an object depends on factors like strength, durability, weight, cost, appearance and intended use. These properties determine how well the material meets the functional and aesthetic requirements of the object.
Sports balls vary in size, color, and texture, affecting their performance. For example, basketballs are larger and textured for grip, while tennis balls are smaller and lightweight. Specific materials enhance durability and behavior in each sport.
The statement means that not everything that appears attractive or valuable is genuinely so. Many objects may shine or look appealing, but their true worth or quality may be deceptive and not live up to expectations.
Yes, some materials can be scratched more easily than others due to differences in hardness. Softer materials, like plastic or wood, are more susceptible to scratches, while harder materials, like metal or glass, resist scratching better.