​A simile is a comparison of two things using "like" or "as"

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​My feet are as cold as ice - is an example of a simile because I am comparing my feet to ice and I have used the word "as".

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​The flight of the balloon is being compared to the quietness of a mouse.

​Read the Poem Carefully

​Can you spot a metaphor?

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​This picture is a hint...

​The flames filling the balloon make the balloon plump up. The author is comparing the balloon filling with air to a monarch butterfly emerging from a chrysalis. At first the butterfly's wings are all crumpled , but soon they dry and plump up to display their beautiful wings.