Page 1 - HA-1-Objective & Subjective

SAI INTERNATIONAL SCHOOL
Class - VI
Subject - Chemistry
Topic – Changes Around Us

Sub-Topic – Application of Contraction and Expansion
Home Assignment

Objective Questions/MCQs:-

1. Choose the correct alternative to complete the given analogy –
Physical change : Boiling :: Chemical change: __________

a) Melting
b) Condensation
c) Burning
d) Evaporation

2. What is the difference between the making of furniture from wood and the burning
of wood?
a) The first is irreversible and the second is a reversible change.
b) First is physical and second is a chemical change

c) First is fast and second is a slow change
d) First is periodic and second is non-periodic change

3. Liquid mercury is used in thermometers because:
a) They contract on cooling
b) It is a non-metal
c) They expand on heating.
d) Both (a) and (c)

4. Iron blade of spade is made slightly smaller than the wooden handle because:

a) Iron ring expands on heating
b) Iron ring contracts on heating
c) The wooden handle expands on heating
d) The iron ring remains the same on heating

5. When cold water is poured over the hot iron rim in a wooden wheel:
a) It expands
b) It contracts

c) It remains the same
d) It breaks

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