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How Are Icicles Formed?
Today’s super-cool Wonder of the Day is just hanging around, waiting to be read!
How Are Icicles Formed?
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What Is Mulch?
Today’s Wonder of the Day is a chip off the old block!
What Is Mulch?
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How Do Arctic Animals Survive in the Cold?
You might want to bring your heavy coat to Wonderopolis today!
How Do Arctic Animals Survive in the Cold?