What is "solid"?
hard or firm, keeping a clear shape
What is "particle"?
an extremely small piece
What is "suffer from"?
experience or show the effects of something bad
What is "stink"?
smell very unpleasant
What is "bacteria"?
a type of very small organism that lives in air, earth, water, plants, and animals, often one that causes disease
What is "coat"?
cover something with a layer of a particular substance
What is it?
A toilet bowl
What is "reduce"?
become or to make something become smaller in size
What is "coating"?
a layer of a particular substance that covers a surface
What is "flush"?
If you flush a toilet, or if a toilet flushes, its contents empty and it fills with water again
What is "gross"?
Extremely unpleasant
What is "orginism"?
a single living plant, animal, virus
What is "layer"?
a level of material, such as a type of rock or gas, that is different from the material above or below it, or a thin sheet of a substance