Matter is a substance that has mass and can occupy space. Examples of matter are air, water, plants and animals etc.
States of Matter Matter can exist in i) Solid State ii) Liquid State iii) Gaseous State
Matter can be changed from one state to another usually affected by change in temperature. Some processing like Melting, Vapourisation, Condensation, Freezing, Sublimation etc are involved.
Some Matters can exist in three states eg is water.
PROPERTIES OF MATTER
Matter has physical and chemical properties Physical Properties such as melting point, boiling point, density, solubility, odour, colour etc. Chemical Properties such as changes they undergo to form a new substance like rusting of an iron when exposed to moist air.
Matter can undergo two changes Physical Change: Change that is temporary and can be easily reversed. E.g mixture of water and stone, dissolution of sodium chloride NaCl in water. Chemical Change: Change that is permanent and cannot be easily reversed. E.g Burning of Sulphur in plenty of air. 06 August 2010Comment