Answer:
Pumice stone has a large percentage of voids and is lightweight, so therefore, has the ability to float in water.
Step-by-step explanation:
- Pumice is one unique type of volcanic rock which resembles a sponge that is artificially made.
- It is made up of volcanic glass and contains a number of voids which act like small packets of air allowing the stone to float on water.
- Its composition makes it light in weight and also mostly light in color.