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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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Atoms and Atom Model
The number of important particles in an atom is
2
3
4
5
Author:
rikazzz
Comment
Heat Transfer
In common use, thermal imaging cameras can
identify temperature of roads
identify heat distribution in buildings
cool down the temperature of roads
identify the heat released by each car
Author:
rikazzz
Comment
Electric Circuits and Currents
Current conducting path through wires, bulb and battery is known as
conductor
circuit
electrical flow
convectional flow
Author:
rikazzz
Comment
Atoms and Atom Model
The positive ion is known as
cation
anion
positron
negatron
Author:
rikazzz
Comment
Atoms and Atom Model
Nuclear batteries are
small in size
very heavy
harmful
enlarge in size
Author:
rikazzz
Comment
Electric Circuits and Currents
A short thin piece of wire which is heated up and melt by the flowing of electric current in it, is called
circuit
fuse
cell
resistor
Author:
rikazzz
Comment
Physical and Chemical Changes
When the state of matter is changed from liquid to gas, we call it
melting
freezing
boiling
condensing
Author:
rikazzz
Comment
Dispersion of Light
Periscope is used in submarines to see the happenings of events
above sea level
on sea level
in algae abundant ares
behind a wall or a barrier
Author:
rikazzz
Comment
Particle Model of Matter
Gold is often in a state of matter which is
solid
liquid
gas
molten
Author:
rikazzz
Comment
Forces Effects
The earth pulls object towards center, causing it to fall
   in the center
   on the ground
   on the polls
   on the floor
Author:
rikazzz
Comment
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