ද්වාරය:පටුන/ද්වාර/ස්වාභාවික සහ භෞතික විද්යාව
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Physical science
Astronomy (Space, Solar System, Mars, Moon, Uranus, Jupiter, Star, X-ray astronomy)
Chemistry (Analytical chemistry, Organic chemistry, Physical chemistry, Crystallography)
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Physics (Cosmology, Gravitation, Electromagnetism)