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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
विकल्प
burning of candle
melting of ice
cooking of food
blowing of bulb
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उत्तर
burning of candle
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संबंधित प्रश्न
Define physical change. Give two examples for the above changes.
Fill in the blank.
When a candle burns, wax melts. Melting of wax is a ________ change.
Tick (√) the correct alternative from the choice given for the following statement
A pop sound is heard when a lighted match stick is brought near the mouth of a jar. This indicates the release of gas.
Write true or false
Decomposition of leaves is a fast change.
Classify the Following as a Physical Or a Chemical Change.
Curdling of Milk
Fill in the blank.
The process of a liquid changing into a solid is called ________
Give a reason why
Change of seasons is a periodic change while the change of weather is a non-periodic change.
Is a change of state of matter – a physical or a chemical change. Give reasons.
What type of energy changes is associated when ice melts?
Give two examples for the following case:
Physical changes which are reversible
