Ch – 6 Physical & Chemical Changes

Q.1: Properties such as size, shape, colour, etc. of a substance are called its ____________ properties. a) physical b) chemical c) both Q.2: The iron acquires a film of ____________ substance, when it gets rusted. a) greyish b) greenish c) brownish Q.3: Magnesium + Oxygen —-> _______________. a) Magnesium Oxygen b) Magnesium Oxide c) MagnesiumContinue reading “Ch – 6 Physical & Chemical Changes”

Earth, Sun and Moon

Q.1: Pluto was recognised as ‘dwarf planet’ by the International Astronomical Union (IAU) in _____________. a) August 2001 b) August 2005 c) August 2006 Q.2: A ___________ is a celestial body that orbits around a planet. a) comet b) satellite c) star Q.3: The atmosphere of earth protects us from the harmful ultraviolet rays ofContinue reading “Earth, Sun and Moon”