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General Science
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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
Show/Hide Answers
Electric Circuits and Currents
‘Voltage’ is measured by
ohms (Omega)
ampere (A)
watts (W)
volts (V)
Author:
rikazzz
Comment
Elements and Compounds
“There are only four elements including air, earth, water and fire”, it was believed by
Germans
Greeks
Chinese
Americans
Author:
rikazzz
Comment
Investigating Space
The largest radio telescope was built into a natural hollow in the
cave
hive
jungle
desert
Author:
rikazzz
Comment
Investigating Space
A black hole is more dense than a
white dwarf
neutron star
yellow star
red supergiant
Author:
rikazzz
Comment
Electric Circuits and Currents
Ammeter can be connected anywhere because current is
same in the whole circuit
least near the bulb
least near the cell
greatest near the switch
Author:
rikazzz
Comment
Mixtures
Breakdown or formation of compound involves
chemical reaction
heating
passing electricity through
all of above
Author:
rikazzz
Comment
Physical and Chemical Changes
Ammonia fertilizers are made by two components, they are
ammonia and hydrogen
ammonia and nitric acid
nitrogen and hydrogen
nitrogen and water
Author:
rikazzz
Comment
Respiration and Food Energy
The process of giving out breath is known as
inhaling
exhaling
respiration
evaporation
Author:
rikazzz
Comment
Solutions
When a large amount of solute dissolves in a given amount of solvent it forms
dilute solution
saturated solution
aqueous solution
concentrated solution
Author:
rikazzz
Comment
Atoms and Atom Model
An atom of ‘hydrogen’ has
one proton and one electron
one proton, one neutron and one electron
one proton and one neutron
one electron and one neutron
Author:
rikazzz
Comment
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