Class 6 Changes Around Us CBSE Questions & Answers

Class 6 · Changes Around Us

This is Science Class 6 Changes around Us CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Melting of ice into water is a
  • A
    Permanent change
  • B
    Physical change
    Correct
  • C
    Chemical change
  • D
    Exothermic change
2
Digestion of food is a
  • A
    Chemical change
    Correct
  • B
    Periodic change
  • C
    Temporary change
  • D
    Physical change
3
Growth in size of the body of an organism is a
  • A
    Chemical and permanent change
    Correct
  • B
    Chemical and temporary change
  • C
    Physical and permanent change
  • D
    Physical and temporary change
4
The changes in which new substance is formed is called
  • A
    Biological change
  • B
    Physical change
  • C
    Chemical change
    Correct
  • D
    Temporary change
5
Which types of changes are temporary?
  • A
    Periodic change
  • B
    Non-periodic change
  • C
    Chemical change
  • D
    Physical change
    Correct
6
Rotation of fan blade is a
  • A
    Permanent change
  • B
    Periodic change
    Correct
  • C
    Undesirable change
  • D
    Non- periodic change
7
Eruption of volcano is a
  • A
    Periodic change
  • B
    Undesirable change
    Correct
  • C
    Temporary change
  • D
    Desirable change
8
Sublimation is the changing of
  • A
    Solid into liquid
  • B
    Solids directly into gases
    Correct
  • C
    Liquid into gases
  • D
    Gases into liquid
9
In exothermic reaction
  • A
    Heat is evolved
    Correct
  • B
    No change in temperature
  • C
    All of these
  • D
    Heat is absorbed
10
Growth of plant is a
  • A
    Periodic change
  • B
    Temporary change
  • C
    Permanent change
    Correct
  • D
    Non-periodic change
11
Pulling of rubber band to increase its shape is a
  • A
    Physical change
    Correct
  • B
    Periodic change
  • C
    Chemical change
  • D
    Permanent change
12
In physical changes
  • A
    Evolution of heat energy takes place
  • B
    No new substance is formed
    Correct
  • C
    Release of light energy takes place
  • D
    New substance is formed
13
In chemical changes
  • A
    No change in arrangement of atoms
  • B
    Rearrangement of molecules takes place
  • C
    No change in colour
  • D
    Rearrangement of atoms takes place
    Correct
14
Melting of ice is a
  • A
    Chemical change
  • B
    Both physical and chemical change
  • C
    Physical change
    Correct
  • D
    Periodic change
15
Which of these is the smallest particle?
  • A
    A water drop
  • B
    A molecule
  • C
    An atom
    Correct
  • D
    A speck of dust