soil physical chemical properties

particle - size analysis

to measure size of soil particles in order to classify how much ssc soil contains 

bulk density

mass of dry soil / by its volume (including pore space)

tells you how compact or lose soil is

water retention

how much was soil can hold for plant use

hydraulic conductivity

how easily water moves thro soil

COLE (coeffiecient of linear extensibility)

measures how much soil swells when wet and shrinks when dry

shrink swell potential

lm - moist length  ld - air dry length

(lm-ld) / ld