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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:
Making a fruit salad with raw fruits
Define a chemical change. Give two examples of the above changes.
Given reason:
Freezing of water to ice and evaporation of water are physical changes.
Is a change of state of matter – a physical or a chemical change. Give reasons.
Select the chemical changes from the following list of changes
Breaking of glass
______ is the Universal Solvent.
Grinding of wheat grain changes its size. It is a ____________ change.
Give two examples for the following case:
Physical changes which are not reversible
Keeping a stone in sunlight for few hours is ______.
Mention a few physical properties of a substance.
