
The Day the Sun Disappeared
When the sky suddenly turns dark in the middle of the day, two curious kids discover why the day the sun disappeared—learning how the Moon can pass between Earth and the Sun during a solar eclipse.
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When the sky suddenly turns dark in the middle of the day, two curious kids discover why the day the sun disappeared—learning how the Moon can pass between Earth and the Sun during a solar eclipse.

Nia and Ben investigate why the stars seem to have disappeared from their town’s sky. With help from Mr. Vega, they discover that bright city lights are causing light pollution and find a way to bring the stars back.

Riya and Kabir enter Ionora, the Kingdom of Ions, with their robot guide Sparky. Through glowing castles, electron-exchange bridges, and crystal lessons, they discover how atoms become charged: lose an electron to form a cation, or gain an electron to form an anion.
El sistema solar tiene ocho planetas que orbitan el Sol. Cada planeta tiene distintos tamaños, temperaturas, atmósferas y características de superficie que los científicos estudian para aprender cómo se forman y cambian los mundos.
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