V2 class vii matter and its composition

MATTER AND ITS COMPOSITION

1. MATTER AND ITS COMPOSITION STATES OF MATTER PROPERTIES OF SOLIDS, LIQUIDS AND GASES

2. Matter is classified on the basis of their characteristics as Solids Liquids Gases STATES OF MATTER ICE WATER WATER VAPOUR

3. Solids – They have a definite shape and a definite volume Liquids – They do not have a definite shape but have a definite volume Gases - They have neither a definite shape nor a definite volume STATES OF MATTER

4. STATES OF MATTER Examples of Solid, liquid and gaseous chemicals

5. STATES OF MATTER ARRANGEMENT OF PARTICLES IN SOLIDS , LIQUIDS AND GASES SOLIDS LIQUIDS GASES Closely arranged Not closely arranged Loosely arranged

6. Property Solids Liquids Gases Intermolecular space Negligible as the molecules are closely packed Have more intermolecular space as the molecules are not closely packed Have greater intermolecular space as the molecules are loosely packed Shape Have fixed shape Have no fixed shape. Take the shape of the container Have no fixed shape. Take the shape of the container Volume Have definite volume Have fixed volume Have no fixed volume Fluidity Do not flow Can flow from higher level to lower level Can flow in all directions

7. UPCOMING TOPICS … Properties of solids, liquids and gases Interconversion of states of matter