The corner on a shape where edges meet is called a vertex.
It is called the method of equilibrium
it is also called a triangular prism
That's called a square.
adjectives are also called describing words
A piece of broken pottery is called a shard.
a tester is the name for the piece of wood that goes over the top of a four poster bed. The curtains are called bedcurtains a tester is the name for the piece of wood that goes over the top of a four poster bed. The curtains are called bedcurtains Another name is Full Tester Bed
It is sometimes called a diamond - as in the suit in playing cards, not a jumped-up piece of coal!
volume
A piece of feces A piece of s--- A poop
Old Manuscripts were called the Codes. Refer to the Voynich Biblical Manuscript codes
lens
Another name for the ratio of mass to volume is density. Density is calculated by dividing an object's mass by its volume. It is a measure of how much mass is contained in a given volume.
A synonym for a piece of straw could be a stalk or a reed.
Volume
Volume Names
The amount of substance per unit volume or the number of moles of a substance per unit volume is called its MolarityI think you meant to say "What is the MASS of substance in a given volume called?", meaning what name is given to the mass-per-unit-volume of a substance, i.e. the mass of a chunk of it divided by its volume. The is density.