How to group Materials?

Transcript

Table 6.3 Which of the following Objects are Hard and which are Soft and which material they are made up of?Object Hard/Soft Material Table 6.3 Which of the following Objects are Hard and which are Soft and which material they are made up of?Which objects are hard and which are soft ?Hard objects Soft objects Note - Here, we have done classification of objects What is Classification of Objects?The method of arranging objects into group on basis of some property Example - Classification of Objects on basis of hardness :- Hard objects Made from Hard Materials like Clay, Plastic, Wood and Glass Soft objects Made from Soft Materials like Wool and Cotton Sometimes We classify Materials on basis of UseExample 1 In kitchen, we usually store things in such a manner where similar utensils are placed together. Sometimes We classify Materials on basis of UseExample 2 In Grocery Shop , Shopkeeper keeps all types of spices in one corner, pulses and grains in another corner and so on. Sometimes We classify Materials on basis of UseExample 3 In chemist shop , medicines are arranged alphabetically Example - Medicines starting with alphabet A are kept together How can we classify Sports Balls? Tennis Ball Cricket Ball Hand Exercise Ball Different balls have different bounce So, they are used in different kinds of sports We can also Classify Objects on Basis of ShapesExample We can Put all round chairs on top of each other We can also Classify Objects on Basis of Materials UsedExample We can put all Glass Plates separately and Steel Plates Separately Materials can also be Classified on Basis of Capability to Hold WaterSome materials can hold water Some materials cannot hold water Kulhad ( Clay Cup ) Plastic Glass Paper Cup Steel Glass Glass Cloth Cup Which Material should be used to Make Tumbler ?Kulhad made of Clay Plastic Glass made of Plastic Steel Glass made of Steel Glass made of Glass These materials have capacity to hold water Question 1 (Page 119) Visit your kitchen and observe how your parents have organised various edibles. Can you suggest a better sorting method? Write it in your notebook.In my kitchen, edibles are kept randomly on different shelves. I suggest sorting them by type - grains, spices, snacks, and vegetables - and labelling containers. This will make the kitchen neat and items easy to find.