foam
form of matter containing pockets of gas in a solid or liquid
scum
substance layered at the surface of a liquid as result of a cooking process
foam glass
porous glass foam material used as a building material
tofu skin
Chinese and Japanese food product made from soybeans
acoustic foam
open celled foam used for acoustic treatment
shaving cream
cream applied to areas of hair growth to facilitate shaving
fire-fighting foam
foam that is used for fire suppression
reticulated foam
porous, low-density solid foam
plastic foam
foam made of plastic
bubble ring
Toroidal vortex ring of air in water
sea foam
foam created by the agitation of seawater
spray foams
Wikimedia duplicated page
metal foam
material consisting of pockets of gas in a metallic matrix
culinary foam
foodstuff whipped with air
barm
foam on fermenting liquor
vanishing spray
marking substance in sports, typically used on the playing ground, in order to provide a temporary visual marker