1. Shreya while playing with her elder brother in the garden pool, observed that a wooden block sinks in water but a wooden plank of same weight floats on water. She was very astonished on seeing this. Shreya's brother on seeing such question mark on her face explained the reason.
(a) What is density ?
(b) Why some substances float while other sink in water?
(c) What value of Shreya is shown here ?
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Explanation:
1
Density is type of weight but in volume.
2
When any object is lighter than water then it floats and when any object is heavier than water then it sinks.
3
Shreya observed that few things float and sink in water.
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