First Science Library: Light & Dark (What Is A Lens? Why Do Shadows Change Shape? 16 Easy-To-Follow Experiments Teach 5 To 7 Year-Olds All About Rainbows, Reflections And Refraction.book sub-title if any)

A simple and clear how-to book for younger readers about light and how it works, with practical projects, accessible text and lively illustrations.
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