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CBSE - VII
CBSE VII - Science Solved Questions
Question 1
The unit of temperature in Celsius scale is degree centigrade.
A) True
B) False
Question 2
When a ball is rolled on a frictionless plane surface, it moves with variable speed.
A) True
B) False
Question 3
As a filament in an electric bulb, we use thin metal wires which get heated to high temperatures quickly and gives light without melting.
A) True
B) False
Question 4
The image of an object placed in front of a plane mirror ____.
A) can be obtained on a screen when it is placed close to the mirror
B) can be obtained on a screen when it is placed at any distance from the mirror
C) cannot be obtained on a screen
D) can be obtained on a screen when it is placed at infinity
Question 5
____ change their colour and help to identify acidic and basic solutions.
A) Metal salt solutions
B) Indicators
C) Electrolytes
D) Non-metallic liquids
Question 6
Which of the following does not represent a change?
A) Dissolving sugar in water to make a cool drink
B) Adding kerosene to water
C) Formation of curd from milk
D) Stretching of a rubber band
Question 7
The daily weather report contains information about ____.
A) rotation of earth
B) direction of wind current
C) day temperatures
D) news timings on television
Question 8
Water on the earth is present in the form of ____.
A) liquid only
B) liquid and gas
C) solid and liquid
D) liquid, solid and gas
Question 9
Forest is a natural ____ in which plants, animals and microorganisms are linked together.
A) place
B) habitat
C) home
D) land
Question 10
Arrange the following in the correct sequence as they are performed for water treatment in a waste water plant.
(i) Removal of large objects.
(ii) Air is pushed.
(iii) Addition of chemicals.
(iv) Removal of grits and sand.
(v) Removal of solids like faeces.
A) (i), (ii), (iii) , (iv) and (v)
B) (i), (iv), (v), (ii) and (iii)
C) (i), (iii), (v), (iv) and (ii)
D) (v), (iv), (i), (ii) and (iii)
