-- Amazingly in-depth reference books covering physics, chemistry, biology, information technology, earth sciences and astronomy, with up-to-date information on brand-new fields-- Contain experiments, activities, A-Z dictionary, review questions and suggested Web sites for each topic
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'I can't praise Usborne enough for introducing [internet links] to many of their non-fiction books as it really helps children retain information' - Adventures in Home Schooling
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