I also tell my students about Google Scholar and ERIC.
Those are both free databases that students can use to find reliable resources.
Taking half a class to discuss keywords and phrases helps students tremendously, and it even speeds up the research process because students can find credible sources a lot easier.
When teaching keywords and phrases to my students, I encourage them to type no more than four words into the search engine.
Working in small groups first provides extra support for EL and struggling students.
From there, students come up with their question to answer.
To do this, I encourage students to work collaboratively and talk about their research topics.
They can work in small groups to see what their peers would like to know about that matter.
However, when students are simply told to research and turn in a paper, blunders will happen.
An almost "laughable" mistake made by middle school students was listing as the only source.