MEDIUM
6th CBSE
IMPORTANT
Earn 100

Stretching a spring is (reversible / irreversible) change?.

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Important Questions on Changes Around Us

MEDIUM
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Short Answer Type Questions>Q 24
The following change is reversible or irreversible?
Grinding of grain to flour.
MEDIUM
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Short Answer Type Questions>Q 24
The following change is reversible or irreversible?
Burning of incense stick.
EASY
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Short Answer Type Questions>Q 24
The following change is reversible or irreversible?
Melting of ice.
HARD
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Long Answer Type Questions>Q 25
When is a change said to have taken place in a material? Explain with the help of an example.
HARD
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Long Answer Type Questions>Q 26
What is meant by ‘reversible changes’ and ‘irreversible changes’? Explain with examples
HARD
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Long Answer Type Questions>Q 27
Explain how, a metal rim is fixed around the wooden wheel of a cart. What type of change/changes take place during this process?
HARD
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Long Answer Type Questions>Q 28
Explain why: the burning of paper is said to be an irreversible change whereas the boiling of water is known as a reversible change.
HARD
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Long Answer Type Questions>Q 29
Is it possible that the same materials may undergo reversible and irreversible changes? Give two examples in support of your answer.