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प्रश्न
Make a list of different types of changes with example.
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उत्तर
Different types of changes are as under :
- Reversible Change e.g. Melting of ice.
- Irreversible Change e.g. Burning of paper.
- Periodic Change e.g. Swinging of pendulum.
- Non-Periodic Change e.g. Occurrence of floods.
- Desirable Change e.g. Ripening of fruits.
- Undesirable Change e.g. Rusting of Iron.
- Natural Change e.g. Changing of Seasons
- Man-Made Change e.g. Changing the direction of flow of a river by dams.
- Slow Change e.g. Growth of a plant
- Fast Change e.g. Occurrence of lightning during thunderstorm.
- Physical Change e.g. transformation of ice.
- Chemical Change e.g. curdling of milk.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
Explain why burning of wood and cutting it into small piece are considered as two different types of changes.
Write true or false for the statement
Decomposition of leaves is a fast change.
What role does energy play in initiating a chemical change ?
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Select the chemical changes from the following list of changes
Preparation of carbon dioxide from calcium carbonate & dilute hydrochloric acid.
Wood to sawdust:______:: Wood to Ash: Chemical change
What kind of change is shown by tearing of paper?
Cutting a log of wood into pieces is a chemical change.
