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.
ï· Mass: a measure of the amount of matter in an object; a fundamental property of an. object that is not affected by the forces that act on the object, such as gravity. ï· Element: a substance that cannot be separated or broken down into simpler substances by.