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- 1. Multiple Choice
All changes takes place due to some______
Cause
Choice
- 2. Multiple Choice
During condensation and evaporation of water, the ________ of water changes.
Appearance
State
Movement
- 3. Multiple Choice
The_______ balloon changes when we blow the air.
Color
Shape
- 4. Multiple Choice
Rolling of chapathi and baking oh chapathi are the changes that,
Can be reversed
Cannot be reversed
Can be reversed and cannot be reversed
Cannot be reversed and can be reversed
- 5. Multiple Choice
Increase in the volume of substances on heating,the substance will show the change in,
Extension
Expansion
Exclusion
- 6. Multiple Choice
Changes that lead to the formation of new substances are called_________.
Physical change
Chemical change
- 7. Multiple Choice
Which of the following changes cannot be reversed?
Milk to paneer
Cold milk to hot milk
Yarn to knitted sweater
Wet clothes to dry clothes
- 8. Multiple Choice
Which of the following can be reversed?
Raw egg to boiled egg
Wet clothes to dry clothes
Bud of a flower
Cow dung to bio-gas
- 9. Multiple Choice
The process where the liquid changing into solid is called
Evaporation
Condensation
Heating
Boiling
- 10. Multiple Choice
The burning of wood
Can be reversed
Cannot be reversed
Can be expanded
Can be melted
- 11. Multiple Choice
Pick the change that can be reversed from the following
Cutting of trees
Melting of butter
Burning of candle
Blooming of flower
- 12. Multiple Choice
What is a reversible change?
a change that cannot be reversed
a change that can be reversed
I don't know
a change where a new substance is formed
- 13. Multiple Choice
The picture shows an example of a ______________ change.
reversible
freezing
irreversible
all of the above
- 14. Multiple Choice
One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?
sublimation
condensation
evaporation
distillation
- 15. Multiple Choice
Folding of paper is a ____________ change while burning it is a _____________ change.
reversible , reversible
reversible, irreversible
irreversible, reversible
- 16. Multiple Choice
The iron blade of a soil digging tool is fixed to a wooden handle by the process of ______________.
melting
contraction
expansion
freezing
- 17. Multiple Choice
Which one of the following is a beneficial change?
rusting of iron object
spoilage of food
ripening of fruit
souring of milk
- 18. Multiple Choice
Which one of the following is a reversible change
Tearing of paper
Blowing air in a balloon
Breaking of stick
Baked chapati
- 19. Multiple Choice
Classify the following as reversible or irreversible changes:
(i) Growth of a plant
(ii) Ploughing a field,
(ii) Melting of wax
(iv) Falling of rain
(v) Pulling of rubber string
(vi) Breaking of a glass rod
(mi) Cooking of food.
Reversible : (ii), (iii), (v)
Irreversible changes : (i), (iv), (vi), (ii)
Reversible : (iii), (ii), (iv)
Irreversible changes : (i), (v), (vi), (vii).
- 20. Multiple Choice
On continuously heating water into a pan -
The quantity of water in the pan decreases
The quantity of water in the pan increases
The quantity of water in the pan remains constant
Can’t say anything in this case
- Answer choicesTagsAnswer choicesTags