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The answer may surprise you.
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The biggest planet in our solar system
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Antarctica is a continent. Antarctica covers Earth's South Pole.
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Curiosity is the key!
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What Is the Weather Like on Other Planets?
Each of the planets in our solar system experiences its own unique weather.
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Launch a rocket from a spinning planet
Wind up that launch pad!
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Approximately every four years we add a day to the calendar. Learn more about why it’s important!
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Glossary for "Sign Here!" words
Defines words in "Sign Here" game.
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Make one for this month and find your favorite constellation.
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Turn an old CD into Saturn's rings.
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