Reversible and Irreversible Changes
Changes in matter takes place
in day
noon
night
all the time
all the time
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Raw egg is completely different in shape, color, taste, smell fromA. boiled egg
B. fried egg
C. both a and b
D. organic egg
If sugar is heated it undergoes
A. reaction
B. evaporation
C. condensation
D. decomposition
Changes in matter can be observed upon
A. separating
B. filtering
C. mixing
D. heating
In case of chocolate the heating lead to changes which are
A. reversible
B. irreversible
C. same
D. constant
To fry or boil an egg we need
A. pan
B. heat
C. water
D. match stick
Oil and gas catch fire
A. easily
B. slowly
C. not at all
D. extinguisher
Salt can be separated from water in a salty solution by
A. heating
B. filtering
C. sieve
D. leaving at room temperature
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