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"Vaporization and Liquefaction" PPT courseware on physical states and their changes
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2023-09-25 18:20:00
"Vaporization and Liquefaction" State of Matter and Its Changes PPT Courseware
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2021-12-28 17:10:11
"Crustal Movements and Volcanic Earthquakes" PPT courseware
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2023-09-25 18:16:23
"Changes in the State of Matter in Life and Technology" State of Matter and its Changes PPT Courseware 4
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"Changes in the State of Matter in Life and Technology" State of Matter and its Changes PPT Courseware 5
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2023-09-25 18:19:59
"Changes of Water" The most common liquid - water PPT courseware
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"Our Great Harvest" Growth Changes of Plants PPT
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"The Missing Water" Water Changes PPT Courseware 3
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2023-09-25 17:32:16
"Little Water Drops Flying Back" PPT courseware on changes in water
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2023-09-25 17:32:15
"The Missing Water" Water Changes PPT Courseware 4
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"Changes in the State of Matter in Life and Technology" State of Matter and its Changes PPT Courseware 3
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2023-09-25 18:19:59
"How Hard It Rains" Changing Weather PPT Courseware
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"The Missing Water" Water Changes PPT Courseware 4
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"Law of Conservation of Mass" Chemical Changes and Their Representation PPT Courseware 2
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2023-09-25 18:21:18
"The Missing Water" Water Changes PPT Courseware 2
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2023-10-05 09:48:44
"Growth Changes of Silkworms" Animal Life Cycle PPT
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2023-09-25 18:14:16
"Measuring the Temperature of Water" Changes in Temperature and Water PPT
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"The Missing Water" Water Changes PPT Courseware 2
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2023-09-25 17:32:16
"Controlling the Speed of Iron Rusting" Changes in Matter PPT
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"Express Creatively" PPT
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"Express Creatively" PPT
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"How the Yellow River Changes" PPT Courseware 4
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"Social Changes during the Warring States Period" PPT courseware
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"Iron is Rusty" PPT courseware on changes in matter
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"Exploring the Pitch Changes of the Ruler" Sound PPT
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"Water Frozen" Changes in Temperature and Water PPT
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"How the Yellow River Changes" PPT Courseware 2
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"Measuring Temperature" Changing Weather PPT Courseware
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"How the Yellow River Changes" PPT Courseware 4
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"Thermal Expansion and Cold Contraction" Changes in Matter PPT Courseware
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"Exploring the Factors of Land Erosion" Earth's surface and its changes PPT download
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"Thermal Expansion and Cold Contraction" Changes in Matter PPT Courseware
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"Iron is Rusty" PPT download of changes in matter
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"How the Yellow River Changes" PPT Courseware 3
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"Changes of Sea and Land" PPT
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2023-09-25 18:24:26
"Exploring the factors causing land erosion" Earth's surface and its changes PPT courseware
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"Exploring the Factors of Land Erosion" Earth's surface and its changes PPT download
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"Seeds Become Seedlings" Plant Growth Changes PPT Courseware
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"Exploring the factors causing land erosion" Earth's surface and its changes PPT courseware
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"Mutation of Biology" PPT
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"Changing Trends of Random Phenomenon" PPT courseware
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"How the Yellow River Changes" PPT Courseware 3
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"Seeds Become Seedlings" Plant Growth Changes PPT Courseware
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"Exploring the Pitch Changes of the Ruler" Sound PPT
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"Changes of Water Molecules" Exploring the Water World PPT
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"Social Changes in the Warring States Period" PPT download
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"Changing Trends of Random Phenomenon" PPT courseware
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2023-09-25 18:05:13
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