Here's why:
* Connective words are words that link words, phrases, or clauses together.
* Conjunctions are a specific type of connective word that join elements of equal grammatical rank.
For example:
* Coordinating conjunctions (and, but, or, nor, for, so, yet) join words, phrases, or clauses that are grammatically equivalent:
* "I like apples and oranges." (joins two nouns)
* "She went to the store but forgot to buy milk." (joins two independent clauses)
* Subordinating conjunctions (because, although, since, while, if, unless) introduce dependent clauses and connect them to independent clauses:
* "I stayed home because I was sick." (joins a dependent clause to an independent clause)
So, while all conjunctions are connective words, not all connective words are conjunctions. Other examples of connective words include prepositions, adverbs, and conjunctive adverbs.