How does rhyme scheme add meaning to a poem?
Rhyme scheme is the ordered pattern of rhymes at the ends of lines on a poem/verse.
Anyone can speak in prose without any extra effort, but it takes a lot of intention and thought to make poetry. Along with rhythm, a good rhyme scheme is important in poetry.
Rhyme scheme, along with meter, makes poetry sound musical. It makes the poem memorable and easy to recite. A classic example of this can be seen in the Mother Goose poem, "There was an Old Woman Who Lived in a Shoe":
There was an old woman who lived in a shoe.
She had so many children, she didn't know what to do.
She gave them some broth without any bread;
And whipped them all soundly and put them to bed.