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WorksheetsPhysical And Chemical Changes CLASS 7 (BASED ON 'NCERT BOOK'
Total questions: 15
Worksheet time: 15mins
Which of the following is a Reversible Physical Change?
A. Burning of candle Wick
B. Cutting of Paper
C. Bursting of a balloon
D. Melting of wax in a candle
Properties of Physical changes are _________ , ________ , __________ and _______________.
(a)
A change in which one or more new substance is formed is called a-
A. PHYSICAL CHANGE
B. CHEMICAL CHANGE
C. REVERSIBLE CHANGE
D. IRREVERSIBLE CHANGE
For rusting, the presence of both ____________ and ____________ is essential.
Oxygen
Carbon Dioxide
Water (water vapour)
Heat (warmth)
Are Physical Changes always reversible?
True
False
If you leave a piece of Iron in the open for some time it acquiresa film of ____________ substance.
Brownish
Yellow
Reddish
Blackish
Which 2 of the following are Chemical Changes?
A. Rusting Iron
B. Cutting of Trees
C. Melting of Wax
D. Digestion of food in our body.
Which type of Change is this " Fermentation of grapes"?
(a)
If you heat up and melt an Iron Rod. Can you Reverse the change?
Yes
No, we can't
Maybe, but not sure
Impossible
When carbon dioxide is passed through lime water, it turns milky due to the formation of (a) .
Which type of changes occur in your own body?
A. CHEMICAL CHANGE ONLY
B. PHYSICAL CHANGE ONLY
C. Both A & B
D. NO CHANGE OCCURS
Is life possible on Earth without these changes?
A. Yes
B. Impossible
C. Maybe
D. Can happen but not certain
Did you like this Quiz?
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I would never like to play this Quiz again
Is milk going sour a physical or chemical change?
Physical
Chemical
