Example
What is the effect of marine microplastics pollution on the food chain?
Step 1: Break up this research question into two or three main concepts. Ignore extraneous words.
Step 2: Conduct an initial search with these words, and quickly scan the results.
Step 3: Using information from your initial search, add synonyms, acronyms, and variant spellings.
(microplastics) AND (marine OR ocean OR aquatic) AND (food chain OR food web)