Remember that by using a Search Engine you are searching the entire Internet, not just the St Philip Howard Catholic High School Web, so a search of the whole Internet using a Search Engines might well bring you up a list of hundreds of resources in your search result. As a quick tip, most of the Search Engines use relevance filters, which for your purposes means that the information you want is likely to be in the first two or three screens of "hits".
Because your search is likely to bring you back so many hits, you will need to be very careful about evaluating resources for relevance, appropriateness and accuracy.
Because you are searching the entire Internet, and not simply a small section of it (for example, the SPH website), you need to recognise that you might find some resources which you consider inappropriate.
