Poetry and Rhymes

When Carl Sandburg says "the fog comes on little cat feet", what poetic device is it?

More Questions from Poetry and Rhymes
In "The Snow Queen", Kai must form what word before being released from the Snow Queen's power?
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Whose poem is titled "American Football"?
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How far would the speaker travel for love in "A Red, Red Rose"?
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What did "The Old Woman Who Lived in a Shoe" feed her kids?
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Whose poem is titled "Dover Beach"?
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Who wrote the poem "The Ventriloquists"?
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In the poem "Baa Baa Black Sheep", who doesn't the black sheep have a bag of wool for?
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In "The Cat and the Fiddle", why did the dog laugh?
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