collect - specimens ( of plants or animals), develop - a theory, discover - something ( that no one knew about before), do - an experiment (to learn what happens), do (2) - research (into a subject), invent - something (that didn't exist before), observe - or watch carefully, take - measurements ( of the size of sth), take (2) - notes (so you can remember information),

Focus 2 Unit 2 collocations

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