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"Plant Stems and Material Transport" PPT
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2023-10-05 09:28:42
"Representation of Material Composition - Chemical Formula" Representation of Chemical Elements and Material Composition PPT Courseware 2
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2023-10-05 09:34:06
"Plant Roots and Material Absorption" PPT
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"Particles Constituting Matter" PPT courseware on the composition of matter
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"Physical Quantities Commonly Used in Chemistry—Amount of Substances" Understanding Chemical Science PPT (Lesson 3: Amount and Concentration of Substances)
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2023-09-25 18:21:39
"Elements Composing Matter" PPT courseware on the composition of matter
下载 413 次
2023-10-05 09:48:30
"Chlorine and its Compounds" Important elements in seawater - sodium and chlorine PPT (Lesson 1 Properties of chlorine)
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2023-09-25 18:21:26
"Law of Conservation of Mass" Chemical Changes and Their Representation PPT Courseware 2
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2023-09-25 18:21:18
"Physical Quantities Commonly Used in Chemistry - Amount of Substance" Understanding Chemical Science PPT (Amount and Concentration of Substance in Lesson 2)
下载 963 次
2023-09-20 15:12:36
"Plant Roots and Material Absorption" PPT
下载 206 次
2023-10-05 09:28:41
"Chlorine and its Compounds" Important elements in seawater - sodium and chlorine PPT (Lesson 1 Properties of chlorine)
下载 223 次
2023-10-05 09:46:46
"Solubility of Substances" Dissolution of Substances PPT Courseware 2
下载 708 次
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"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 10
下载 528 次
2023-09-25 18:20:48
"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 8
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2023-09-25 18:19:06
"Law of Conservation of Mass" Chemical Changes and Their Representation PPT Courseware 3
下载 226 次
2023-09-25 18:21:18
"Physical Quantities Commonly Used in Chemistry—Amount of Substances" Understanding Chemical Science PPT (Amount and Concentration of Substances in Lesson 2)
下载 851 次
2023-09-25 18:21:39
"Law of Conservation of Mass" Chemical Changes and Their Representation PPT Courseware 2
下载 664 次
2023-09-20 15:15:33
"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 9
下载 171 次
2023-09-25 18:20:48
"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 2
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"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 3
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"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 4
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"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 6
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"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 7
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"The Stems Grow Taller" Growth Changes of Plants PPT
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"Chemical Substances and Health" Modern Life and Chemistry PPT Courseware
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"Chemical Substances and Health" Modern Life and Chemistry PPT Courseware
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"Nitrogen and Its Compounds" Important non-metallic elements in chemical production PPT (Lesson 1)
下载 311 次
2023-09-25 17:33:59
"Sublimation and Sublimation" PPT Courseware on Changes in State of Matter 5
下载 755 次
2023-09-25 18:19:06
"Nitrogen and Its Compounds" Important non-metallic elements in chemical production PPT (Lesson 1)
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"Micro Topic 6 Problem-solving Methods Related to Genetic Variation" Gene Mutations and Other Variations PPT
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"Seeds Become Seedlings" Plant Growth Changes PPT Courseware 2
下载 293 次
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"Exploring the Factors of Land Erosion" Earth's Surface and Its Changes PPT Courseware 2
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"Seeds Become Seedlings" Plant Growth Changes PPT Courseware 3
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"Iron and its Compounds" Iron Metal Materials PPT (Elementary Substance of Iron in Lesson 1)
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"Exploration-Specific Heat Capacity of Matter" Mechanical energy, internal energy and their conversion PPT courseware
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"Our Growth and Change" Growth and Change PPT Courseware 3
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"Three State Changes of Water" PPT download of changes in temperature and water
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"Iron and its Compounds" Iron Metal Materials PPT (Elementary Substance of Iron in Lesson 1)
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"Seeds Become Seedlings" Plant Growth Changes PPT Courseware 2
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"Three State Changes of Water" Changes in Temperature and Water PPT Courseware
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"Domestication of Animals" PPT
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Download the PPT of "Three States of Water" on the changes of temperature and water
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2023-10-05 09:34:56
"Our Growth and Change" Growth and Change PPT Courseware 2
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"Evolution of Biology" PPT
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"Social Changes in Industrialized Countries" PPT
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"Seeds Become Seedlings" Plant Growth Changes PPT Courseware 3
下载 322 次
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"The Evolution of Biology" PPT
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"The Mass of Objects" Materials Around Us PPT Courseware 2
下载 841 次
2023-09-25 17:33:50
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