HARD
6th CBSE
IMPORTANT
Earn 100

Sharpen your pencil and see the change. What kind of change is this? Explain your answer.

Important Questions on Changes Around Us

HARD
6th CBSE
IMPORTANT
Is it correct to say that all physical changes are reversible? Support your answer with two examples.
MEDIUM
6th CBSE
IMPORTANT
Why are small gaps left between the railway tracks?
MEDIUM
6th CBSE
IMPORTANT
Study the diagram carefully and answer the following question.
Question Image
Which of the following could be X?
MEDIUM
6th CBSE
IMPORTANT
Study the diagram carefully and answer the following question.
Question Image
Which of these could be Y?
MEDIUM
6th CBSE
IMPORTANT
A potter uses clay to mould it into different shapes using the wheel. Then he bakes it in the oven. What kind of changes are these?
MEDIUM
6th CBSE
IMPORTANT
The burning of LPG in a gas stove involves both physical and chemical changes. Give any other example of the same kind from everyday life.
HARD
6th CBSE
IMPORTANT
The height of a baby increases as it grows. When a cake mixture is baked, it slowly expands. Are these changes of the same kind?
MEDIUM
6th CBSE
IMPORTANT

Cutting of trees is desired by some people for their selfish motives. Cutting of trees indiscriminately is called deforestation. Deforestation makes the land barren. It increases soil erosion and hence desert formation.

What measures do you think should be taken against people responsible for deforestation?