Water has a density of 1000 kg/m3 by standard definition at its temperature of maximum density 3.98 Â°C and at 0% salinity. Scientists and engineers use water as a baseline for comparing the relative density of various materials. Water with a density of 1000 kg/m3 at 3.98 Â°C has a mass of 1000kg and a volume of 1 m3.
Spelt is a word. It is the past participle of spell. It is also a type of wheat, and therefore also a noun. It depends upon whether you are using British English (and Spelt is correct) or you are using American English.
(spÉl) vb, spells, spelling, spelt or spelled. 1. to write or name in correct order the letters that comprise the conventionally accepted form of (a word or part of a word) 2. (tr) (of letters) to go to make up the conventionally established form of (a word) when arranged correctly: d-o-g spells dog. 3. (tr) to indicate or signify: such actions spell disaster for our cause.