Matter in Nature

5.1  Matter in Nature


Matter can be defined as a substances that has mass and occupies space.

Physical Properties of Matter 


Physical properties are the properties that can be identified by using our five senses or measuring tools

Examples of physical properties:

  • Hardness
  • Colour
  • Odour
  • Solubility
  • Melting, freezing and boiling points

Chemical Properties of Matter  


Chemical properties are the properties of a substance that become evident when it changes to a new substance.

Examples of chemical properties:

  • Rusting
  • Flammability
  • Oxidation
  • The ability of a material to float or sink in water.
  • A material that has a lower density will float
  • A material that has a higher density will sink.
 Melting Point and Boiling Point
  • Melting point is the temperature at which a substance changes from solid to liquid.
  • Boiling point is the temperature at which a substance changes from liquid to gas
  • Melting point water: \(0^\circ{\text{C}}\)
  • Boiling point water: \(100^\circ{\text{C}}\)
  • Ability of a substance to dissolve in given amount of solvent to form a solution.
  • The solubility of a substance depends on the physical and chemical properties of its solute and solvent