Soaking up and Up on

Soaking up noun - (chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid.

Up on and soaking up are semantically related. In some cases you can use "Up on" instead a verb "Soaking up".

Up on adjective - Being up to particular standard or level especially in being up to date in knowledge.

Soaking up and up on are semantically related. Sometimes you can use "Soaking up" instead a verb "Up on".