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"Classification of Elements and Matter" PPT courseware of elements and the world of matter (an important mixture in Lesson 2 - colloid)
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2023-09-25 17:34:04
"The Main Element Composing Fuel—Carbon" Fuel PPT Courseware 2
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"Classification of Elements and Matter" PPT courseware of elements and the world of matter (an important mixture in Lesson 2 - colloid)
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2023-09-25 17:34:04
"The Main Element Composing Fuel—Carbon" Fuel PPT Courseware 3
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"The main element of fuel - carbon" fuel PPT courseware 2
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"Integration of this Chapter" Elements and Material World PPT
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"Inference of Elements" Periodic Law of Elements in Material Structure PPT
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"Inference of Elements" Periodic Law of Elements in Material Structure PPT
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"The Composition of Water" PPT courseware
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"The Composition of Water" PPT courseware
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"Periodic Law of Elements" Periodic Law of Elements in Material Structure PPT (Periodic changes in the properties of elements in Lesson 1)
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2023-09-25 17:34:11
"Elements and Compounds in Cells" PPT teaching courseware on the molecules that make up cells
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"Classification of Elements and Matter" Elements and the Material World PPT (Lesson 1: Relationship between Elements and Matter, Classification of Matter)
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"The Composition of Rocks" Rocks and Minerals PPT
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"Classification of Elements and Matter" Elements and the Material World PPT (Lesson 1: Relationship between Elements and Matter, Classification of Matter)
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2023-09-25 17:34:04
"Composition of Air" PPT courseware on the composition of air and matter
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2023-09-25 18:21:17
"Periodic Law of Elements" Periodic Law of Elements in Material Structure PPT (Application of the Periodic Table of Elements and Periodic Law of Elements in Lesson 2)
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"Periodic Law of Elements" Periodic Law of Elements in Material Structure PPT (Application of the Periodic Table of Elements and Periodic Law of Elements in Lesson 2)
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"Periodic Change Law of Element Properties" Periodic Law of Elements PPT
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"Periodic Change Law of Element Properties" Periodic Law of Elements PPT
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