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Question
When ice melts to form water, change occurs in its
Options
position
colour
physical state
composition
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Solution
Physical state
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Write true or false for the statement
A natural change can also be a desirable change
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What will you take into account while identifying the following?
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Match the examples of changes in List I with the correct type of change in List II.
| List I | List II |
| 1. Burning of paper | A: Physical change |
| 2. The ringing of an electric bell | B: Chemical change |
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| 4. Electric light is switched on | |
| 5. Melting of butter |
Filling up a balloon with hot air is a _______ change.
Match the items of Column I with the items of Column II.
| Column I | Column II | ||
| (a) | Large crystals | (i) | Turns lime water into milky |
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| (c) | Souring of milk | (iii) | Rust |
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| (e) | Iron oxide | (v) | Chemical change |
| (f) | Dissolving common salt in water | (vi) | Galvanisation |
