MEDIUM
6th Foundation
IMPORTANT
Earn 100

What is common among the following phenomena?
1. Blinking of traffic lights
2. Rotation of blades of a fan
3. Swinging of pendulum of a clock.

25% studentsanswered this correctly

Important Questions on Changes Around Us

MEDIUM
6th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 6>Chapter 4 - Changes Around Us>EXERCISES>Q 10
Observe the two figures given below. In figure I, a solution of sugar in water is heated and in figure II, only sugar is being heated. What changes are taking place in both figures I and II?
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MEDIUM
6th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 6>Chapter 4 - Changes Around Us>EXERCISES>Q 11
Rohan tore a sheet of paper into pieces and then burnt them. Identify the irreversible change taking place in the process.
MEDIUM
6th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 6>Chapter 4 - Changes Around Us>EXERCISES>Q 12

Study the given flow chart carefully.
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Which of the following is correct?

  P Q
(A) Reversible Change Reversible Change
(B) Irreversible Change Reversible Change
(C) Irreversible Change Irreversible Change
(D) Reversible Change Irreversible Change
MEDIUM
6th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 6>Chapter 4 - Changes Around Us>EXERCISES>Q 13
A potter shapes pots out of clay (Process 1). He then bakes the pots in an oven (Process 2). Which of the following statements is correct?
HARD
6th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 6>Chapter 4 - Changes Around Us>EXERCISES>Q 14

Match column I with column II and select the correct option from the given codes.

  Column I   Column II
P. Digestion of food in our body (i) Fast change
Q. Earthquake (ii) Natural, desirable change
R. Falling of stone (iii) Natural, undesirable change
S. Change of seasons (iv) Slow change
MEDIUM
6th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 6>Chapter 4 - Changes Around Us>EXERCISES>Q 15

Consider the following phenomena :
(i) Forest fire
(ii) Growth of plants
(iii) Low and high tides
(iv) Occurrence of a rainbow
(v) Earthquakes
(vi) Opening of a morning glory flower

Which of the above phenomena can be classified as periodic changes?

HARD
6th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 6>Chapter 4 - Changes Around Us>EXERCISES>Q 16

Observe the given figure carefully and select the correct statement.

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MEDIUM
6th Foundation
IMPORTANT
NSO Science Olympiad Workbook Grade 6>Chapter 4 - Changes Around Us>EXERCISES>Q 17

Swati classified a few changes occurring around us as shown in the table.

S.No. Changes Type
1. Sharpening of pencil Physical, reversible
2. Evaporation of water Physical, irreversible
3. Photosynthesis Chemical, irreversible
4. Rusting of iron Chemical, reversible

Which of the changes is/are classified correctly?