Google Scholar is a vertical search engine indexing only a select portion of the web. It searches across many disciplines to find journal articles, books, theses & dissertations, court opinions, and other scholarly content from academic publishers, professional societies, and select academic web sites.
Only some of the sources on Google Scholar are available free in full-text format. You can also connect Google Scholar to the MJC Library so it will identify those sources available through the Library databases. This is configured automatically on computers you use in labs on East and West campuses. To configure this at home, go to "hamburger menu" and choose Settings, then choose Library Links. You can link to the Modesto Junior College by typing it into the search box, selecting it, and saving your search.
There is currently no way to limit to peer-reviewed journals, but you can easily search journal names to determine their status.
An MJC Librarian can help you access Google Scholar, add the MJC Library to the settings, conduct effective searches, and determine if the journal articles you find are peer reviewed.