Clauses vs Phrases
Both clauses and phrases are clusters of words.
Clauses contain a subject and verb. If they form complete thoughts, we call them independent clauses. If they form incomplete thoughts, we call them dependent or subordinate clauses.
example: While we collected the data dependent clause, the temperature gradually increased independent clause. The subject and verb combinations are we collected in the dependent clause and temperature increased in the independent clause.
Phrases are word clusters lacking subject and verb combinations.
example: While collecting data phrase, we noted an increase in temperature.