Question

Cotton is solid but it floats on water why? Answer in 80 words. Correct answer will get brainiest ​

Answer 1

Cotton has large number of pores, in which air is trapped. Hence reducing its density and increasing the volume. Therefore cotton floats on water. But when these pores get filled with water it starts sinking.

OR

cotton has a porous structure, the air gets trapped between the pores making overall density of the cotton less then the water hence the cotton floats on the water. when the water replaces the air the pores, the density increases and the cotton sinks.

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Answer 2

any thing which has lower density than water it will must float on water either it is solid or liquid