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Q5.Two properties of a magnet are: (i) A magnet always has two poles: a north pole and south pole. (ii) Like magnetic poles repel each other and unlike magnetic poles attract each other.
Q6. Your body has its own natural cooling system. Sweating is key to cooling when hot weather or exercise causes your body temperature to climb. When sweat dries, it carries heat away from your body's surface and lowers your temperature.
Q7.i)tiny drops of water that form on cool surfaces at night, when atmospheric vapour condenses.
ii)a degree or state of coldness sufficient to cause the freezing of water.
iii)A physical phenomenon produced by the motion of electric charge, which results in attractive and repulsive forces between objects.
iv)An electric cell is a device which produces electricity capable to run smaller appliances like torch, clock, camera, radio etc.
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Answer:
Q5) The two properties of magnet are :-
(i) A magnet always has two poles: a north pole and south pole.
(ii) Like magnetic poles repel each other and unlike magnetic poles attract each other.
Q6) Your body has its own natural cooling system. “Sweating” is key to cooling when hot weather or exercise causes your body temperature to climb. When sweat dries, it carries heat away from your body's surface and lowers your temperature.
Q7) (i) Dew is the result of water changing from a vapor to a liquid. Dew forms as temperatures drop and objects cool down. If the object becomes cool enough, the air around the object will also cool. Colder air is less able to hold water vapor than warm air.