Experiment No - 7 demonstrates virus cultivation using embryonated egg techniques. Materials needed include wild chicken eggs, an incubator, disinfectants, a candle light, egg holders, cotton, a sprit, an egg driller, a syringe, discard trays, wax seals, markers and PPEs. The procedure involves inoculating specific virus samples into embryonated eggs at marked sites, then incubating and examining the eggs over time to check for signs of viral growth such as pocks.