Chapter 2 Chemistry
Authored by Surekha .M
Chemistry
7th Grade
Used 15+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Changes that repeat after a fixed interval of time
Non periodic change
Periodic change
Reversible change
Irreversible change
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Example of periodic changes
Blooming of flowers
Motion of pendulum
Occurence of low tides and high tides
Change in phase of moon
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Changes which can be reversed
Periodic change
Non periodic change
Reversible change
Irreversible change
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Changes that are harmful to us
Reversible change
Periodic change
Undesirable change
Slow change
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An irreversible change takes place when
Salt is added to water
Charcoal burns
Ice melts
An iron nail is magnetized
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which one of the following is a beneficial change?
Rusting of an iron object
Spoilage of food
Ripening of fruit
Souring of milk
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is correctly matched
Growth of a child into adult - periodic change
Curling of milk- fast change
Cooking food - irreversible change
Earthquake- desirable change
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