Matter is anything which has a mass and occupies a volume in
space. It is made up of tiny particles called atoms.
Matter is found in three states.
i) Solid slate: A solid has a definite shape and volume.
ii) Liquid state A liquid has no definite shape but a
definite volume.
iii) Gas state: A gas has no definite shape or volume.
Measurement is one of the three methods used in science, whereas
the other two are experimentation and observation.
mass: The amount of matter in an object. The unit of mass is
the kilogram (kg).
Area: The amount of surface enclosed by its boundaries. As a
formula, it is stated as:
Area = length x width in symbols A= a x b
The unit of area is m2.
Volume: The amount of space occupied by an object. As a
formula, it Is slated as :
Volume = length x width x depth
V = a X b X c
The unit of volume is m3.
Density: The mass of an object per unit volume.
The unit of density is kg/m3 or g/cm3.
