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The Big Green Book of the Big Blue Sea
     

The Big Green Book of the Big Blue Sea

by Helaine Becker
 

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Based on the idea that knowledge is power, The Big Green Book of the Big Blue Sea shows how the ocean works and why this immense ecosystem needs our protection. Experiments using everyday materials help explain scientific concepts, such as why the ocean is salty, how temperature affects water density and why fish don't get waterlogged.

A focus on

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