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प्रश्न
Classify the following as a physical or a chemical change.
Melting of wax
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उत्तर
Physical change
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
State whether the following is physical or chemical changes.
mixing oil with water —
Write true or false
Earthquake is a desirable change.
True or false
Change of seasons is a non-periodic change.
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Given reason:
Cutting of a cloth piece is a physical change, though it cannot be reversed.
Give four difference between physical and chemical changes.
Read the paragraph and note down the various types of changes it mentions.
It was nearing six o'clock in the evening. The sun was setting. A breeze was blowing. Leaves on the tree were shaking. Sahil was sitting in the courtyard, rolling balls of wet soil, and shaping them into various toys. Then he felt hungry and went into the house. Mother made a dough from wheat flour and fried purees. While eating hot purees, his attention was drawn outside the window. It had started raining. There was lightning, too. Sahil was enjoying his dinner in the dim light.
______ is the substance that is dissolved in a solvent.
Natural changes which take place in nature on their own, are beyond the control of human being.
