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"Quality" Quality and Density PPT Courseware 8
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"Scientific Inquiry: Density of Matter" Mass and Density PPT Courseware
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"Chemical Bonding" Periodic Law of Elements in Material Structure PPT (Lesson 1 Ionic Bond)
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"Methods and Procedures for Studying the Properties of Matter" Understanding Chemical Science PPT (Basic Procedures for Studying the Properties of Matter in Lesson 2)
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"Victory in the War of Liberation" PPT courseware on the great victory of the People's War of Liberation
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"How substances dissolve in water" Dissolution PPT courseware 2
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