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"Elements" The Mystery of Material Composition PPT Courseware 5
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"Elements" The Mystery of Material Composition PPT Courseware 7
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"Scale of Objects and Their Measurement" Scale, Mass and Density of the Material World PPT Courseware 4
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"Representation of Material Composition - Chemical Formula" Representation of Chemical Elements and Material Composition PPT Courseware 2
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"Elements" The Mystery of Material Composition PPT Courseware 8
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"Combustion and Fire Extinguishing" PPT courseware on changes in matter
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"Iron is Rusty" Changes in Matter PPT Courseware 2
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"Thermal Expansion and Cold Contraction" Changes in Matter PPT Courseware 3
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"Thermal Expansion and Cold Contraction" Changes in Matter PPT Courseware 2
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"Scale of Objects and Their Measurement" Scale, Mass and Density of the Material World PPT Courseware 2
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"Elements" The Mystery of Material Composition PPT Courseware 6
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"Elements" The Mystery of Material Composition PPT Courseware 9
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"Scale of Objects and Their Measurement" Scale, Mass and Density of the Material World PPT Courseware 4
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"Diversity of Iron" Properties and Transformation of Matter PPT (Transformation between Iron and Its Compounds in Lesson 2)
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"Nitrogen Cycle" Nature and Transformation of Matter PPT (Transformation and Generation of Ammonia in the Second Lesson)
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