Secretive and wary, weasels are difficult to study in. nature, and many gaps remain in our knowledge of their. reproduction. Two of the species covered in this Wild-. life Note (the ermine and the long-tailed weasel) exhibit.
Extensive - Properties that do depend on the amount of matter present. Mass - A measurement of the amount of matter in a object (grams). Weight - A measurement of the gravitational force of attraction of the earth acting on an object. Volume - A measurement of the amount of space a substance occupies. Length.
The separation of a substance into its parts, usually by chemical means, for the study and identification of each component. â¦ Qualitative analysis determines what substances are present in a compound. â¦ Quantitative analysis determines how much of each substance is present in a compound.