4. Explain the following with reasons: [3] An incense stick can be smelled meters away b. Clay can be molded into various shapes and is still categorized as a solid Clothes dry faster on a sunny day
Answers
Answer:
The smell of lighted incense stick reaches you several metres away but to get the smell from unlighted incense stick you have to go close.
(b) Naphthalene balls disappear with time without leaving any solid.
Answer:
a)Particles of matter are continuously moving. Rate of movement of particles increases with temperature; therefore the smell of lighted incense stick reaches us several metres away due to diffusion.
b)Yes, clay is a type of soft earth which can be moulded into different shapes and when it is baked it becomes very hard. ... When the temperature decreases this feels in their melted and mixed form only and take the shape given before raising the temperature
c)Sun - Clothes dry much quicker in the warm sunshine because the water is evaporated. Evaporation is when the liquid (water) is turned into a vapour and the water disappears. ... Therefore, the heat from the sun helps to dry clothes quickly.
Explanation:
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