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MATTER

Anything that occupies space and has mass is called matter. A book, stone, water and even a single human hair is made up of matter.

Mass
Mass is the total amount of material an object is made up of. Ex: If you weigh your school bag, you will know how much matter it contains.

Three states of matter
  1. Solid
  2. Liquid
  3. Gas
Ex: Water exists in all three states, ice in the solid state, water in the liquid state and water vapour in the gaseous state.

Solids
Matter in solid state has the following properties.
  1. It has a definite shape.
  2. It has a definite volume. The total space occupied by an object is known as its volume.
  3. It has a definite mass.
Ex: Stone, glass, wood

Liquids
Matter in the liquid state has the following properties.
  1. It has no definite shape. It takes the shape of its container.
  2. It has a definite volume.
  3. It has a definite mass.
  4. It flows from a higher level to a lower level.
  5. It can be poured into a container.
Ex: Water, Oil, Milk etc.

Gases
Matter is in gaseous state has the following properties.
  1. It has no definite shape.
  2. It has no definite volume.
  3. It has a definite mass.
  4. It spreads in the entire available space.
  5. If allowed to spread in the open, gases mix with air.
Ex: Smoke, steam, air etc.