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प्रश्न
Fill in the blank.
Growing of a seedling into a plant is _______ change.
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उत्तर
Growing of a seedling into a plant is chemical change.
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संबंधित प्रश्न
Write true or false for the statement.
Burning of paper and formation of curd are reversible changes
Solve this crossword by using the clues that follow.
Across
1. Energy in the form of sunlight is absorbed by the green plants in this process.
4. The reddish-brown substance formed over iron in the presence of oxygen and moisture.
5. This change is permanent and irreversible.
6. The process in which a solid directly changes into gaseous state.
Down
1. It is the change that takes place in case of swinging pendulum of a clock.
2. Occurrence of this is a non-periodic change as well as a natural change.
3. It is a physical change
True or false
Is the process of digestion a physical change?
Write true or false
Decomposition of leaves is a fast change.
A physical change is temporary. Explain.
Give the main differences between physical changes and chemical changes.
State the observations seen, when milk in a dish is kept aside for a few hours or more. Is the change which occurs – a physical change or a chemical change. Give reasons.
State whether the following statement is true or false. If false write the correct statement.
Melting of ice is an exothermic, irreversible chemical change.
What type of energy changes is associated when ice melts?
Which of the following is not a physical change?
