Advertisements
Advertisements
Question
Change is the law of nature and occurs in our everyday life, at all times and in all places.
Differentiate between the following change with a suitable example.
Slow and fast change.
Advertisements
Solution
| Slow change | Fast change |
| (i) Changes which occur – very slowly over days, months, or years. | (i) Changes which occur – very rapidly in seconds or minutes. |
| (ii) Examples: Growth of a tree from a seed - a few years, tooth decay, change of seasons, growth of many rusting of iron | (ii) Examples: Occurrence of lightning - a few seconds, burning of paper or match, lighting a bulb, bursting of fireworks. |
APPEARS IN
RELATED QUESTIONS
Classify the following as chemical or physical change:
Cutting of trees
Photosynthesis cannot take place at night.
Which of the following are physical changes and which are chemical changes ?
Freezing of water
Classify the following as a physical or a chemical change.
Burning of paper
Classify the Following as a Physical Or a Chemical Change.
Curdling of Milk
Explain the term – ‘sublimation’. Is sublimation of naphthalene – a physical or a chemical change. Give reasons.
Name the following.
The product of the chemical change in keeping a polished iron nail exposed to the atmosphere.
Filling up a balloon with hot air is a _______ change.
Assertion: The explosion of fire cracker is a physical change.
Reason: A physical change is a reversible change.
Iron pipes coated with zinc do not get rusted easily.
