MATERIAL & SUBSTANCES
Materials & substances are the two common terms used very often in chemistry and it is found that children are not able to understand the difference between them. So, let’s see what actually they are?
There are so many things around us. There are things which you can see and touch like – stones, air, rice grain, television, books, water, chair, toys, etc. and there are things which you cannot see, and can only feel their presence around you, like – air. All of these are known as substances or materials in chemistry.
Normally, there is no difference between these two terms, but word material is specifically used for those substances or things which you use to make different types of other substances.
Let’s take two examples to understand better.
Example – 1:
For the construction of any type of house or building you need, bricks, cement, wood, sand, and steel. As bricks, cement, wood, sand, and steel are things used for building a house – a new thing, thus you can call them as materials.
To make tea you need four different substances – water, sugar, tea leaves and milk. Thus you can also call water, sugar, tea leaves and milk as materials.
Few examples of common substances or materials around us are –
- Natural materials such as salt, marble, petroleum, air, etc.
- Metallic materials such as gold, iron, silver, copper, etc.
- Animal products such as milk, cheese, butter, etc.
- Vegetable products such as fruits, vegetables, grains, etc.
- Man made products such as cement, sugar, glass, plastic, steel, medicine, etc.
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