Give very short answer:-
a) What is Slow change? give example?
b) What is Fast change? give example?
c) What is Physical change?give example?
Answers
Answer:
Answer ⤵️
a. The changes which take place in a long period of time are called slow changes.
Ex- Rusting of iron, ripening of fruits, growing of trees are slow changes.
b. The changes which take place in a short period of time are called fast changes.
Ex-Crackers burst, blowing of balloons and burning of papers.
c. A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another. The size or shape of matter may be changed, but no chemical reaction occurs.
Ex- boiling, melting, freezing, and shredding.
Explanation:
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Answer:
The changes which take place in a long period of time are called slow changes whereas, the changes which take place in a short period of time are called fast changes.
Examples:
(a) Rusting of iron, ripening of fruits, growing of trees are slow changes.
(b) aBurning of paper, stretching of a rubber band, blowing of balloons, bursting of crackers are fast changes.