II.
Read the sentences carefully and choose the letter of the correct answer.
16. When materials change their size and shape, they are said to undergo
a.Physical change
b.Chemical change
C. Matter
17. Is a formation of one or more new substance due to the action or presence of heat and
other substances such as acid,
a.Physical chemical
b.Chemical change
C. Matter
18. Water cycle undergoes physical change in the environment. What is one good effect of
this change?
a.provides water
b. provides fresh air
c. provides clouds
19. When plants and animals die and decay, chemical changes happen and becomes a
part of the soil, what beneficial effect does it give?
a.The soil is rich in water
b. The soil becomes fertile
c. There will be an additional layer of the soil
20. Wood can be changed into charcoal. What is the beneficial effects
c. It provides us fue
b. It provides us shelter
a.It provides us clothing
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Answer:
16.a
17.b
18.a
19.b
20.c.