Introduction To Metals And Non-Metals
Chapter Name : Materials: Metals And Non-Metals |
Sub Topic Code : 102_08_04_01_01 |
Topic Name : Introduction To Metals And Non-Metals |
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Sub Topic Name : Introduction To Metals And Non-Metals |
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Introduction
Classification of materials into metals and non-metals
Pre-Requisites:
Basic knowledge on materials.
Activity:
Drop few materials (coal, gold, silver) from the top of the table and check which make sound.
Real Life Question:
What metal is used in conduction of electricity in your house?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Metal | An element which is a good conductor of heat and electricity is called as a metal |
| Non metal | An element which is not a good conductor of heat and electricity is called as a non metal |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Characteristic identify | By revealing a certain characteristic of material, we have to guess whether it is a metal or a non-metal. Ex- A material which can be beaten into sheets ? metal. |
Real life uses :
Copper wires are used in conduction of electricity inside our side with very less loss of energy into heat.
Places to visit :
Go to your kitchen and check utensils. Try to identify metals in them.
Practical examples around us
| Examples | Explainations |
|---|---|
| Why there is a wooden or plastic holder to a metallic pan | Since metals are good conductors of heat and electricity, the handle will also be hot with the beaker. Which tend to have danger of burning our hand if there is no plastic or wooden holder which is not a conducting material |
What you learn in Theory:
Metals and non metals properties
What you learn in Practice:
Basic introduction to metals and non metals describing a few important properties