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  1. Declaration of Independence 相關

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  2. Reproduction Activity Guide - 7th Grade

    The online or in-class science solution. Standards-based & partnered with the NSTA. Includes 5E Lesson Plans, Reading Material, Quiz Games, DIY Activities & More. Try it Free

    Types: Grades K-2 Science、Grades 3-5 Science、Grades 6-8 Science