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Explore Wonders | Find: LB彩票（网址:NBA88.COM）LB彩票_LB彩票_LB彩票_LB彩票_LB彩票LB彩票_LB彩票_LB彩票_2rbQu2bbd | Wonderopolis

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Why Is "lb" the Abbreviation For Pound?

Our hearts are POUNDing thinking about today’s Wonder of the Day. We hope you can handle it. It’s a little bit heavy!

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Why Is "lb" the Abbreviation For Pound?
Do Insects Work Out?

Grab a bug and head on over to Wonderopolis today to pump some iron!

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Do Insects Work Out?
Why Do Measurements Matter?

We sure hope today’s Wonder of the Day measures up!

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Why Do Measurements Matter?
How Do You Use the Metric System?

We hope you get a Metric ton of enjoyment from this Wonder of the Day!

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How Do You Use the Metric System?
What Is a Spit Valve?

We don’t mean to toot our own horn, but we think today’s Wonder of the Day will be music to your ears.

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What Is a Spit Valve?
Who Is Uncle Sam?

Today’s Wonder of the Day features everyone’s favorite uncle!

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Who Is Uncle Sam?
How Do Mood Rings Work?

We hope you’re in the mood for an interesting Wonder of the Day today!

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How Do Mood Rings Work?