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Question-1
Matter is made of particles. This is the basis of:
(A)
Law of mass conservation
(B)
Particle theory of matter
(C)
Dalton's theory
(D)
Law of reciprocal proportion
Question-2
The thickness of atmosphere is:
(A)
1000 km
(B)
100 km
(C)
10,000 km
(D)
10 km
Question-3
The boiling point of water is:
(A)
100
o
C
(B)
10
o
C
(C)
110
o
C
(D)
99
o
C
Question-4
The state of matter of a substance can be charged by changing the:
(A)
Volume
(B)
Temperature
(C)
Mass
(D)
Pressure
Question-5
The gas used in cookers and fires:
(A)
Ammonia
(B)
Methane
(C)
Butane
(D)
Hydrogen
Question-6
Falling water in the form of rain, snow or hail is called:
(A)
Transpiration
(B)
Condensation
(C)
Melting
(D)
Precipitation
Question-7
Sublimation is possible in:
(A)
Hydrogen
(B)
Ammonia
(C)
Iodine
(D)
Mercury
Question-8
The particles of liquid lose much energy that they can no longer slide over each other and have vibration about one position. The process is called:
(A)
Freezing
(B)
Evaporation
(C)
Boiling
(D)
Melting
Question-9
The planet which is made from a very large amount of hydrogen.
(A)
Mars
(B)
Saturn
(C)
Jupiter
(D)
Pluto
Question-10
When some substances are heated, it forms a gas without forming a liquid. This is:
(A)
Condensation
(B)
Transpiration
(C)
Sublimation
(D)
Freezing
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Cambridge Secondary Grade 8
IGCSE
Practice in Related Chapters
Acid and Bases
The World of Matter
Simple Chemical Reactions
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Introducing Chemistry
Metals and Metal Compounds
Elements and Atoms
Separation of Mixtures
Compounds and Mixtures
Rocks and Weathering
Patterns of Reactivity
Chemistry and the Environment
Using Chemistry
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