We cannot help you with the powerpoint presentation as that is a personal task that only you can complete. However, we are able to help you find information about the sacrament known as the anointing of the sick.
The anointing of the sick is a ritual that is performed mostly within the Catholic Church. This is given to all people who are gravely ill, although in practice, it has often been reserved for those who are considered near their time of death. Because of this, it is one of the last sacraments that a person receives. During this rite, a priest pours oil (usually blessed olive oil) over a person's head, as an outward sign to confer inward grace.