A sponge is a porous or absorbent material because it can soak in liquid into itself. Its porous body, which has many holes, allows water to penetrate it. The sponge’s porous bodily material, filled with pores, allows liquid to pass through easily, and so is often used for cleaning purposes since it also retains water.
Quiz: What is an example of a porous material?
- A sponge that soaks up liquid.
- A dark-colored cloth that absorbs light.
- An indented rock that collects water.