methane

chemical compound, formula CH4, the main constituent of natural gas

ammonia

naturally common and widely used but pungent-smelling, caustic and hazardous colorless gas, formula NH3

splinter, shard

long and/or sharp fragment of material, e.g. wood, glass or pottery

dough, batter

grain-, nut-, or bean-based paste or liquid mixture used to prepare {tIr ngogh}, {chab}, or {bIQyIn}

terracotta

clay-based earthenware ceramic material, the fired body of which is porous

kelp

large heterokontic brown algae seaweed

fern

group of vascular plants lacking seeds and flowers and reproducing via spores

hypha

long branching filamentous structure of fungi and other organisms; the main mode of fungal vegetative growth

andesite

extrusive volcanic rock composed of mostly plagioclase plus pyroxene or hornblende