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SAI INTERNATIONAL SCHOOL

                                                  Subject–Chemistry
                                                       Class – VIII
                                         Topic – Combustion and Flame

                                                     CONCEPT MAP

                                                    Content Mapping



                     Combustion                                  Combustible substances.
                                                                  Non-combustible substances.

                     Conditions necessary for                    Fuel.
                       combustion                                 Oxygen.
                                                                  Ignition temperature.


                     History of the matchstick.

                     How do we control fire?                     Remove the fuel.
                                                                  Remove the heat.
                                                                  Cut the supply of air.
                                                                  Fire extinguishers.


                     Types of combustion.                        Rapid combustion.
                                                                  Spontaneous combustion.
                                                                  Explosive combustion.

                     Fuels.                                      The calorific value of a fuel.

                                                                  Numericals.
                                                                  Characteristics of an ideal fuel.

                     Flame.                                      Luminous flame.
                                                                  Non-luminous flame.
                                                                  Structure of a flame.

                     Effect of burning of fuel.


                     Greenhouse effect and global warming.











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