Sources of Energy

D.A.V. PUBLIC SCHOOL, KHERA KHURD

CLASS: VIII

TOPIC: Sources of Energy

Assignment

Look at the diagram below and answer the following questions.

                                i.            Name the process.

                              ii.            Why and how it is carried on?

                            iii.            Which grey porous residue is left behind in test tube?

                           iv.            How does the substance ‘D’ looks?

                             v.            What is the colour of ‘C’?

                           vi.            What is the nature of ‘B’?

                         vii.            The process of separating various components of petroleum into their useful form is called _________________.