A cordial is concentrated fruit-based syrup. In the undiluted state the syrup is very sweet, so it is designed to be mixed with predominantly with water (for example tap water, bottled water or soda water).ordials are popular throughout Australia, and come in a variety of flavours, including orange, lemon, blackcurrant, and lime, but vary according to the market in which they are sold. Cordials may or may not contain juice and/or sugar. Like any beverage, cordials should be used in moderation as part of a balanced diet.
2) kilogram (symbol kg) is SI unit of mass - decakilogram is a multiple of the unit (10 kg) , and ounce and pound are relics of the *coughcough* inappropriate imperial unit system . 3) a thermometer is used to mesure temperature. a cylinder is for volume, a ruler for length and a balance for mass.
Density is expressesed as a unit of mass divided by a unit of  volume. The SI standard is the kilogram per cubic metre. In  informal use, it may be given in pounds per cubic â¦ foot, grams per  cubic centimeter, or other ratios.