When I was younger, I adored my Star Wars light-saber. Underline the dependent clause.

When I was younger.

Explanation:

The dependent clause is also known as subordinate clause. The subordinate clause is the clause or a group of words that contains a subject and a verb. These sentences of clause do not make a complete sense or convey a meaning.

In other words, a group of words that cannot make sense or can not stand of there own are known as a dependent clause or a subordinate clause.

In the given sentence, the dependent clause is "When I was younger."

These words do not make sense of their own or do not convey a complete meaning.