When using a template, each student or team can rotate through the activity and the original will not be altered or lost. This allows for a more self-guided lesson. It is both a search engine and a guide to sites on a plethora of subjects. I haven't tried the search engine yet but in gliding through some of the guide pages, it works quickly, because it's mostly text. I is concise in every respect, containing concise answers and good outlines for longer articles.
Pluralization is automatic.
The search can be limited to the article title, using the simple search. The advanced query template allows you to limit the search to a broad category such as Physical Sciences and to articles that have illustrations such as a map, a photograph, a table, or a chart.