Dell Youth Learning provides information about conjunctions and connective words that link parts of text. It defines conjunctions as words that connect parts of a sentence and lists coordinating conjunctions like "and", "but", and "or". Subordinating conjunctions connect a dependent clause to an independent clause using words like "because", "since", and "while". Correlative conjunctions always come in pairs and join equal parts like "both...and", "not only...but also", and "either...or". The document gives examples and exercises to demonstrate different types of conjunctions.