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Intermediate Readers Investigate What Happens When Objects Experience Different Conditions (I.e.. Hot/Cold, Wet/Dry).

Early Readers Investigate What Matter Is.

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Emergent readers learn to recognize different materials such as wood, metal, and plastic.

Eco-conscious readers will be thrilled to know that one of the most powerful, renewable sources of energy has nothing to do with burning fuel or releasing of pollutants, and has a very minimal production of green house gases. Students will see how weve harnessed the power of nature and water to create hydropower.

Though wind power has been in use for hundreds of years, its one of todays fastest-growing energy sources. Readers will learn how we have harnessed the winds energy with everything from primitive windmills to high-tech wind farms.

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Intermediate readers explore concepts of evaporation, condensation, and water as a solid, liquid, or gas.

Ruby vuole solo dimenticare. Vuole solo cancellare l'ultimo anno al Tarble College e nascondere nel profondo quel segreto che non ha confessato a nessuno. Eppure, quando crede che il peggio sia alle spalle si ritrova tra le mani il libro da cui tutto è cominciato. Il libro che custodisce le ombre del suo passato. È all'interno di una valigia: il bagaglio di Beth, una compagna di college che da pochi giorni è scomparsa. Ruby non poteva immagina...

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In graphic novel format, text and illustrations explain how Earths movement causes day, night, and changes in the seasons.

In graphic novel format, text and illustrations explain the force of gravity and how it keeps us on Earth.