Kerala SCERT Class 6 Science Chapter 2 The Essence of Change Question Answer Solution Here. Kerala Board Class 6 Students can find Here 2nd Chapter The Essence of Change Notes provide by our Teacher. Important Question Answer from Chapter 2 The Essence of Change.
- Board- Kerala Board.
- Class – 6.
- Subject – Science Part 1
- Chapter – 2.
- Chapter Name – The Essence of Change.
- Topic – Question Answer Solution.
Multiple choice questions.
1) Different form of energy are
a) Mechanical energy
b) Chemical energy
c) Electrical energy
d) all the above.
2) Plants convert solar energy into
a) Mechanical energy
b) Chemical energy
c) Electrical energy
d) none.
3) All substances contain
a) Mechanical energy
b) Chemical energy
c) Electrical energy
d) none.
4) Physical properties of a substances are
a) state
b) shape
c) size
d) all the above.
5) Physical changes of a substances are
a) Expansion
b) melting
c) breaking
d)tearing
e) all the above.
(6) ——–is a permanent change.
a) physical change
b) chemical change
c) none.
Questions and answers
(1) What is a form of energy?
ANS: Light
(2) Riding motor Vehicles, which Form of energy used?
ANS: Energy from fuels.
(3)While operating a mixer grinder, which Forms of energy used?
ANS: Electrical energy.
(4) How Energy can be transformed?
ANS: Energy can be transformed from one form to another.
(5) In Bulb glowing, how Energy conversions takes place?
ANS: Electrical energy changes into light and heat.
(6) On absorbing heat energy, what changes takes place?
ANS: Substances changes solid state to the liquid state and then to the gaseous state.
(7) On releasing heat energy, what changes takes place?
ANS: substances change sgaseous state to the liquid state and then to the solid state.
Short questions and answers.
(1) Write down examples of chemical changes?
ANS: The examples are given below:
i) cooked rice tastes sweet when chewed for some time.
ii) the colour of clothes fades when exposed to sunlight.
iii) mangoes ripen.
iv) iron rods rust.