Pick out the subordinate clause in the below sentence:

If you work on Sunday, I will look after the children.

A subordinate clause (also known as a dependent clause) is a group of words that contains a subject and a verb but cannot stand alone as a complete sentence. It usually begins with a subordinating conjunction—in this case, "If." While "I will look after the children" is an independent clause that makes sense on its own, "If you work on Sunday" leaves the thought unfinished and depends on the rest of the sentence for meaning.