Question

Which source is considered a primary source of scientific information?
an original research article in a scientific journal
a report about a new scientific discovery in the newspaper
a book that compiles important new research findings
a public lecture at a museum given by the scientist who did the research

Answer 1

An original research article in a scientific journal.

It reports the authors' own methods, data, results and analysis (often peer-reviewed), whereas newspaper reports, books that compile others' findings, and public lectures are secondary or popular summaries rather than primary research reports.