Some news stories, articles and posts have some truth in them, some are mostly false and some are just meant for entertainment or satire. Here are some infographics that can aid you in figuring out how much truth there is in a story.
You may want to start with this handy infographic is from LibraryGirl, a Lead School Library Media Coordinator/Digital Teaching & Learning Specialist in with 20 years of experience in public education.
The International Federation of Library Associations and Institutions (IFLA) has some solid tips for evaluating the "truthiness" of a story, post or article.
In this article from PolitiFact, they came up with a list of websites posting deliberately false or fake news. It's not an exhaustive list but it lists some of the biggest offenders, some of which are sites meant for satire or entertainment.