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Do Hummingbirds Really Hum?
Fly over to Wonderopolis today for a Wonder of the Day that will have you humming a new tune!
Do Hummingbirds Really Hum?
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Does Temperature Affect the Bounce of a Ball?
Get ready to turn up the heat in today’s Wonder of the Day!
Does Temperature Affect the Bounce of a Ball?
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Why Do You Have Wax In Your Ears?
What’s that? Say what? You’re going to have to speak up! Today’s Wonder of the Day? What is it? We can’t hear you!
Why Do You Have Wax In Your Ears?