Скачать или смотреть 5. Changes Around Us: Physical and Chemical (Short Notes / Revision) | Grade 7 Science Curiosity

5. Changes Around Us: Physical and Chemical (Short Notes / Revision) | Grade 7 Science Curiosity

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Описание к видео 5. Changes Around Us: Physical and Chemical (Short Notes / Revision) | Grade 7 Science Curiosity

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In this video, we will study shorts notes and revision of Chapter 5 - "Changes Around Us: Physical and Chemical". This chapter is taken from Grade 7 NCERT Science Textbook - "Curiosity".

Chapters:
0:09 - Introduction
0:29 - 5.1 A Substance May Change in Appearance But Remain the Same! (Physical Changes)
0:51 - 5.2 A Substance May Change in Appearance And Not Remain the Same! (Chemical Changes)
1:14 - 5.3 Some Other Processes Involving Chemical Changes
1:18 - 5.3.1 Rusting
1:27 - 5.3.2 Combustion
1:43 - Is the Presence of Air Enough for Combustion?
2:05 - 5.4 Can Physical and Chemical Changes Occur in the Same Process?
2:24 - Know a Scientist: Michael Faraday
2:40 - 5.5 Are Changes Permanent?
2:53 - 5.6 Are All Changes Desirable?
3:10 - 5.7 Some Slow Natural Changes
3:13 - 5.7.1 Weathering of Rocks
3:26 - 5.7.2 Erosion
3:34 - In a Nutshell (Summary)

#grade7 #science #revision #notes #ncerthinditutor #class7

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