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WorksheetsChapter - 6 || Changes around us
Total questions: 15
Worksheet time: 8mins
In general, on heating metals
Contract
Expand
Can expand or contract
None of these
When object is cooled, it's size
Increases
Decreases
Remains same
None of the above
The burning of wood
Can be reversed
Cannot be reversed
Can be expanded
Can be melted
Which one of the following is a reversible change
Tearing of paper
Blowing air in a balloon
Breaking of stick
Baked chapati
A change that occurs during a definite time interval is known as (a)
Evaporation of water is a reversible change
True
False
Rusting of iron is a reversible change
True
False
The process where, water changes to vapour after heating
Melting
Contraction
Evaporation
Condensation
When iron is heated it
Contracts
Expands
Dissolves
Evaporates
Burning of a candle is _______
Only a physical change
Only a chemical change
Both physical and chemical change
None of these
When a metal rim is fitted on a wood it is first
Expanded then contracted
Contracted then expanded
Melted then cooled
None of these
Cooking of rice is a physical change
True
False
Which of the following changes can be reversed
Raw egg to boiled egg
Wet clothes to dry clothes
Bud to flower
Milk to paneer
Which of the following is a chemical change
Evaporation of water
Burning of fuels
Moving of a wheel
Breaking of a brick
Pick the change that can be reversed from the following
Cutting of trees
Melting of butter
Burning of candle
Blooming of flower
