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註釋This series meets National Curriculum Standards for: Science: Earth and Space Science, History and Nature of Science, Physical Science, Science and Technology, Science in Personal and Social Perspectives. Social Studies: Civic Ideals & Practices Global ConnectionsIndividuals, Groups, & Institutions People, Places, & Environments Power, Authority, & Governance Production, Distribution, & Consumption, Science, Technology, & Society Time, Continuity, & Change.