How do I block certain topics from showing up on my Facebook newsfeed?

My sister in law mentioned the other day how she removed all political, religion, and news related topics from showing up on Facebook. So now her newwfeed is basically just all family, friends, and memes. How do you do this?

I don't really want to have to ask her, so I wanted to see if any of you knew? I have tried looking through the settings and newwfeed preferences.