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Search Tips

Boolean Operators (And, Or, Not)

AND - narrows a search; Use to combine key concepts, for example: Water AND Pollution.

 

 

 

 

 

 

 

 

OR - broadens a search; Use to add concepts, for example: Pollution OR Water.

 

 

 

 

 

 

 

 


NOT - excludes search term(s). Use to eliminate a concept, for example: Water NOT Pollution. Use sparingly!

 

 

 

 

 

 

 

To practice Boolean Searching, go to Exercise: Boolean Operators.

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