General Science for Class 7

Forces Effects
Density has ‘SI’ unit which is
    kilogram per cubic meter
    gram per cubic meter
    meter per kilogram
    meter per cubic meter
Author: rikazzz Comment
Investigating Space
The expansion of universe is slowing down due to
heat
comets
light
gravity
Author: rikazzz Comment
Investigating Space
In space besides stars, there is also a huge capacity of dust and
asteroids
meteoroids
gases
vacuum
Author: rikazzz Comment
Energy Resources
Fossil fuels are rich in carbon and
nitrogen
hydrogen
nitrogen
oxygen
Author: rikazzz Comment
Dispersion of Light
The number of types of cells in retina is
2
3
4
6
Author: rikazzz Comment
Physical and Chemical Changes
The shape of solid is
changeable
definite
irregular
regular
Author: rikazzz Comment
Digestive System
The acid that is found in our stomach, is
hydrochloric acid
sulfuric acid
carbonic acid
nitric acid
Author: rikazzz Comment
Sound Waves
Sound created by musical instruments is amplified by
increasing string vibration
decreasing string vibration
wooden sound box
metallic sound box
Author: rikazzz Comment
Atoms and Atom Model
All bonding involve
protons
neutrons
electrons
positrons
Author: rikazzz Comment
Solutions
Acids turns
red litmus blue
blue litmus red
change after long time
no change
Author: rikazzz Comment

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