Any material that has less density than the liquid on which it is supposed to float.
Styrofoam! it floats.
Chromatin -Kirby330
yes
it is less dense.
For making something that floats.
Whether or not it floats will depend on the material , not the size.
If a sample of a material floats in water, it indicates that the material is less dense than water. This means that the material has a lower mass per unit volume compared to water, which has a density of 1 g/cm³.
Cork does float in water because it's less dense than water.
Pycreet
pine wood?
The material is lighter and more buoyant and floats upward.
sea salt