Part of a 12-volume encyclopaedia intended to supplement a child's first years at school, this book investigates scientific concepts from materials, energy, electricity and magnetism, to forces, sound and music, and light and colour. It includes simple experiments using everyday objects.
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Part of a 12-volume encyclopaedia intended to supplement a child's first years at school, this book investigates scientific concepts from materials, energy, electricity and magnetism, to forces, sound and music, and light and colour. It includes simple experiments using everyday objects.
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