Start with a fairly large blender. Set to "liquefy." Pour into equally large container. Ascertain quantity in terms of weight, fluid ounces etc. Conduct measurement in environment that prohibits evaporation of contents. If desired, subject result to experimental processes that may reconstitute contents without the use of intelligence or design. If all else fails, try the microwave.
Well, at least that's one "scientific" way to do it.
Fester, did you ever get around to measuring the speed of light with the chocolate bar in the microwave??
LOL Fester! But actually, I prefer coyoteman "unreduced" to automatic blender slush. :^) He's so much more interesting the way he is -- that is, in his present, astronomically complex yet wholistic state.