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WorksheetsChanges Around Us: Mock Test
Total questions: 15
Worksheet time: 8mins
Changes that are repeated at irregular intervals are called (a) changes.
Construction of a bridge takes time hence it is a (a) change.
Rotting of fruits is not useful hence it is an (a) change.
Chemical change is reversible.
True
False
All reversible changes are physical. But all physical changes are not reversible.
True
False
Melting of butter is an example of irreversible change.
True
False
Name the change that occurs at regular intervals.
(a)
Name the change that occurs in a short period.
(a)
Name the change that is helpful to humans
(a)
Select the example of desired changes
(i) Ripening of fruits. (ii) Rotting of fruits (iii) Rain (iv) Floods
(i) and (ii)
(i)and (iii)
(ii) and (iii)
(iii) and (iv)
Select the non-periodic changes from the given examples.
Occurrence of day and night
Earthquakes
Migration of birds
Flash Floods
While making vegetable salad Meena had cut a variety of raw vegetables. She mistakenly cut apples as well. As the apples cannot be joined together, this change is _____________.
Reversible change
Irreversible change
Natural change
Periodic change
Grand canyon is formed due to continuous ________ change.
Physical change
Change change
Which type of changes does a meat cooking on a grill possess?
Fast change
Slow change
Irreversible change
Undesirable change
Select the correct options in regards to the chemical change.
New substance is formed
No new substance is formed
Cannot be reversed
Can be always reversed
