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प्रश्न
Change is the law of nature which occurs in everyday life.
State when a substance [i.e. matter] undergoes a kind of change.
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उत्तर
Change is the law of nature that occurs in everyday life. A substance [i.e. matter] undergoes a kind of change when subjected to energy changes.
The matter is said to undergo certain changes when energy is added to the matter or removed from the matter.
Examples of Changes are:
- Ice melts on supplying heat to it.
- Milk changes into curd when a little curd is added to hot milk.
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संबंधित प्रश्न
Classify the following changes as physical or chemical:-boiling
Write true or false
Burning of sugar is a temporary change.
State the Differences Between a Physical Change and a Chemical Change.
Give the main differences between physical changes and chemical changes.
The rusting of an iron object is called :
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
Select the chemical changes from the following list of changes
Rotting of eggs.
Select the chemical changes from the following list of changes
Butter turning rancid
Tearing of sheet of paper into pieces is ______ By the process of Heating of water, change.
Mention a few physical properties of a substance.
