What is hardness example?

“Hardness is a measure of how difficult or easy it is for a substance to be penetrated or scratched! For example, steel (like a steel nail) can scratch your fingernail, so steel is harder than fingernail!!”

What are the hard and soft materials?

Difference between Hard and soft materials
Hard materials Soft materials
More examples from the hard materials are – wood, stone, etc. More examples from the soft materials are –clothes, Cotton, silk, rubber etc.
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Sep 20, 2021

What is called hard material?

Those materials which cannot be easily compressed, cut, bent or scratched are called hard materials. Examples: Iron, glass. Those materials which can be easily compressed, cut, bent or scratched are called soft materials. Examples: Sponge, Cotton.

What are types of hardness?

There are three main types of hardness measurements: scratch, indentation, and rebound. Within each of these classes of measurement there are individual measurement scales. For practical reasons conversion tables are used to convert between one scale and another.

What is the example of hard water?

It is a chemical substance which is transparent, colourless, odourless and tasteless. Water is categorised into two types. They are hard water and soft water.
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Soft water:
Difference between Hard water and Soft water
Example: Groundwater like deep wells Example: Rainwater
Hair and skin become dry Hair and skin become soft