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प्रश्न
Classify the following as physical or chemical change :
Growth of a plant
विकल्प
Physical change
Chemical change
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उत्तर
Growth of plant – Chemical change
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संबंधित प्रश्न
Tick the most appropriate answer.
5. Photosynthesis requires
- heat energy.
- wind energy
- sunlight.
- sound energy
Photosynthesis cannot take place at night.
True or false
Dissolving of a solid in liquid is a physical change.
True or false
Is the process of digestion a physical change?
Give the main differences between physical changes and chemical changes.
State whether the following statement is true or false. If false write the correct statement.
Melting of butter and wax are examples of chemical changes.
Give a reason why rusting of iron is a chemical change but, the magnetization of iron is a physical change.
State whether the following statement is true or false:
Stretching of rubber bands is not a physical change.
Grinding of wheat grain changes its size. It is a ____________ change.
Keeping a stone in sunlight for few hours is ______.
