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प्रश्न
Give two examples of periodic changes.
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उत्तर
Swinging of a pendulum
Rising and setting of the sun.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Cutting of trees
Classify the following as chemical or physical change:
Passing of electric current through water, and water breaking down into hydrogen and oxygen gases.
Define physical change. Give two examples for the above changes.
Write true or false
Deforestation is a man-made change.
Classify the following changes as physical or chemical.
Classify the following as physical or chemical change :
Formation of curd from milk
Select the chemical changes from the following list of changes
Drying of a fruit
Select the chemical changes from the following list of changes
The occurrence of lightning.
Select the correct answer from the choice given below to complete the sentence
The matter is added or removed during a ____________ change.
Give the reason why the following is considered as chemical changes.
An iron nail kept open in the atmosphere rusts.
