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Biological Sciences
50
Modern Materials
21
Atomic Structure
87
Energy Resources
43
Elements and Substances
76
Plant Photosynthesis and Respiration
52
Space and Solar System
230
General Science for Class 6
1155
General Science for Class 7
2197
General Science for Class 8
0
Basics of Electricity
28
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Dispersion of Light
An example of ‘refraction’ of light is
water
wall
brick
metal
Author:
rikazzz
Comment
Importance of Water
The parasite worms spend a part of their life in
human stomach
human intestines
human blood vessels
human liver
Author:
rikazzz
Comment
Sound Waves
An example to demonstrate the effect of sound in vacuum is
vacuum bell jar
simple bell jar
air pump and ring
air pump and clock
Author:
rikazzz
Comment
Physical and Chemical Changes
A component which can stick to the magnet is
iron
sulphur
both a and b
lead
Author:
rikazzz
Comment
Feeding Relationships and Environment
Plants growing in drier conditions tend to have small numbers of stomata on their lower leaf surface to save
water loss
stored sunlight
to prevent itself from consumers
energy loss
Author:
rikazzz
Comment
Atoms and Atom Model
The atomic number of carbon is 6, hence there are
2 protons and 4 electrons
6 protons and 12 electrons
6 protons and 12 neutrons
12 protons and 6 electrons
Author:
rikazzz
Comment
Investigating Space
Astronomers tuned up their telescopes to pick up radio waves from
close galaxies
distant galaxies
close stars
close clusters
Author:
rikazzz
Comment
Importance of Water
The taste of ‘water’ is
sour
bitter
sweet
tasteless
Author:
rikazzz
Comment
Atoms and Atom Model
The particles that have opposite charges, are
protons and electrons
protons and neutrons
neutrons and electrons
photons and protons
Author:
rikazzz
Comment
Respiration and Food Energy
Preventive measure for flu is
medical checkup
vaccination
injection
nebulization
Author:
rikazzz
Comment
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