scientific notation

is: a standard way of representing numbers and numerical quantities. [M1.2, Ml.5, P1.1]

consists: of a decimal number with one digit before the decimal point, multiplied by a power of ten, and followed by appropriate units. The total number of digits is the number of significant figures. [M1.2, Ml.5, P1.1]

is exemplified: by the speed of light in a vacuum to four significant figures: [M1.2, Ml.5, P1.1]

is also known: as standard form, standard index form, floating point notation and powers of ten notation. [M1.2, Ml.5, P1.1]