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Janice VanCleave
pubblicato da
The Rosen Publishing Group, Inc
In a series of fun and involving hands-on chemistry experiments, kids learn how and why a volcano erupts, why there are holes in bread slices, why pennies turn green, how to separate milk into its solid and liquid parts, and how to grow fluffy white crystals. They will also determine and demonstrate how air is cleaned by absorbent chemicals, how to change hydrogen peroxide into water and oxygen with the help of a potato, and how and why evaporation takes away heat. Featuring color illustrations and safe, simple step-by-step instructions, Janice VanCleave again shows just how much fun science can be.
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