Question

sponge is compressible but yet considered a solid

Answer 1

A sponge is considered a solid because it has a definite shape and size. Its compressibility is only due to the minute pores in its surface. it does not change its shape and regains it as soon as it released.

Also, although it can be compressed it does not show fluidity thus can not qualify for any other state.

Answer 2

$\textbf{Answer:}$

✔We know an important characteristics of solid state of matter that, solids cannot be compressed as the force of attraction between the particles is very strong and interpaticle space is very less.

✔These solids maintain their shape even when they an external force is acting upon them, this indicates that solids are rigid and not compressible.

✔We know that solids are not compressible, but $\textbf{sponge}$ is an exceptional case as it can be compressed. This is because sponge has small pores which are filled with air spaces. When we press or compress the sponge, the air is expelled out from the tiny pores and therefore, the sponge gets compressed and is a solid.
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