MEDIUM
6th CBSE
IMPORTANT
Earn 100

When water is mixed with Plaster of Paris (POP) and allowed to dry, it sets into a hard mass. State whether the change which occurs in POP can be reversed or not.

Important Questions on Changes Around Us

MEDIUM
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Very Short Answer Type Questions>Q 10
A bag of cement lying in the open gets wet due to rain. Can the change which takes place in cement on getting wet be reversed by drying?
HARD
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Very Short Answer Type Questions>Q 11
Give one use of the expansion of an object on heating.
MEDIUM
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Very Short Answer Type Questions>Q 12
When one or more properties of a material become different, we say that a _____ has taken place in it.
HARD
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Short Answer Type Questions>Q 13
State five changes which are observed in our everyday life.
HARD
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Short Answer Type Questions>Q 14
Give one example of a beneficial change and one example of a harmful change.
MEDIUM
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Short Answer Type Questions>Q 15
Give two examples of reversible changes.
MEDIUM
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Short Answer Type Questions>Q 16
Give two examples of irreversible changes.
HARD
6th CBSE
IMPORTANT
Awareness Science For Sixth Class>Chapter 6 - Changes Around Us>Short Answer Type Questions>Q 17
Explain how, the iron blade of a spade is fixed to a wooden handle.