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Where Did Earth’s Water Come From?
WATER you doing? It’s time for a new Wonder!
Where Did Earth’s Water Come From?
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Why Do Things Melt When They Get Hot?
Be careful! Today’s Wonder of the Day is red hot!
Why Do Things Melt When They Get Hot?
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What Is the Birthday Paradox?
Today in Wonderopolis we’ll be blowing out some birthday candles!
What Is the Birthday Paradox?