Uses Of Aluminum, Copper, Zinc And Iron
Chapter Name : General Principles And Processes Of Isolation Of Elements |
Sub Topic Code : 102_12_06_09_01 |
Topic Name : Uses Of Aluminum, Copper, Zinc And Iron |
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Sub Topic Name : Uses Of Aluminum, Copper, Zinc And Iron |
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Introduction
We discuss the uses of four important metals in our daily life, including some important alloys for each of them.
Pre-Requisites:
Reactivity, Galvanization, Alloy.
Activity:
Steel utensils are stronger and less rust-prone than iron utensils. This is because steel is an alloy of iron and exhibits better properties than it.
Real Life Question:
Why are steel utensils stronger and less rust-prone than iron utensils?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Alloy | A compound made out of two or more metals, which exhibits more favorable properties than that of its constituent metals. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Flash cards | Alloy compositions for different types of alloys. |
| Flow charts and mental maps | For compartmentalizing uses for each metal and its alloys. |
Real life uses :
We know that alloys are stronger than their constituent metals in most cases. We can use this in our daily lives when deciding whether to buy a copper bowl or a brass bowl- the brass bowl would be stronger and less rust-prone.
Places to visit :
In the kitchen or the puja room- utensils are made up of several of the metals or the alloys learnt, and many puja implements, like the bell, or brass idols, are made of these alloys.
Practical examples around us
| Examples | Explainations |
|---|---|
| In the kitchen- using the iron kadai and a stainless steel utensil. | The iron kadai conducts faster and food is cooked faster on it, although the stainless steel utensil is stronger, being the alloy. |
What you learn in Theory:
The uses of important metals and the composition of alloys.
What you learn in Practice:
The practical uses of metals and comparison with their alloys, and knowledge of which metals are used to build which goods.