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Topic 4 : Sound
Lesson 39 of 41 • 0 upvotes • 14:48mins
Radha Singh
This lesson discusses the chapter of class 8 Science i.e. Sound. There is a slight mistake at 12:31 about wavelength, if the point is taken on the right side of one wave then the other point should also be on the right of the next consecutive wave.
(Hindi) Crash course on Science for CTET 2019
41 lessons • 8h 1m
1
Introductory Lesson (in Hindi)
4:16mins
2
Topic 1 Food : Components of Food and Deficiency Diseases (in Hindi)
14:37mins
3
Topic 1 : Food : Crop Production and Management (in Hindi)
11:11mins
4
Topic 2 Materials : Fibres to Fabric (in Hindi)
12:03mins
5
Topic 2 Materials : Synthetic Fibres and Plastics (in Hindi)
13:18mins
6
Topic 2 Materials : Separation of substances (in Hindi)
14:12mins
7
Topic 2 Materials : Metals and non- metals (in Hindi)
14:24mins
8
Topic 3 The world of living : The living organisms and their surroundings. (in Hindi)
12:41mins
9
Topic 3 The world of living : Getting to know plants (in Hindi)
10:21mins
10
Topic 3 The world of living : Body movements (in Hindi)
15:00mins
11
Topic 3 : The world of Living: Nutrition in Plants (in Hindi)
15:00mins
12
Topic 3 The world of living : Nutrition in Animals (in Hindi)
14:18mins
13
Topic 3 The world of living : Nutrition in animals Part 2 (in Hindi)
9:58mins
14
Topic 3 The World of Living : Respiration in Organisms Part 2 (in Hindi)
9:21mins
15
Topic 3 The world of Living : Respiration in Organisms (in Hindi)
12:42mins
16
Topic 3 : The world of Living : Transportation in Animals and Plants (in Hindi)
12:13mins
17
Topic 3 The world of Living : Transportation in Animals and Plants part 2 (in Hindi)
13:13mins
18
Topic 3 The world of Living : Transportation in Animals and Plants Part 3 (in Hindi)
7:20mins
19
Topic 3 The world of Living : Reproduction in Plants (in Hindi)
11:59mins
20
Topic 3 The world of Living : Reproduction in Plants Part 2 (in Hindi)
12:19mins
21
Topic 3 The world of Living : Microorganisms - Friend and Foe (in Hindi)
14:42mins
22
Topic 3 The world of Living - Microorganisms - Friend and Foe Part 2
13:46mins
23
Topic 3 The world of Living : Microorganisms : Friend and foe Part 3
11:09mins
24
Topic 3 The world of Living : Cell - Structure and Functions Part 1
14:30mins
25
Topic 3 The world of Living : Cell - Structure and Functions Part 2
11:16mins
26
Topic 3 The world of Living : Reproduction in Animals Part 1
12:24mins
27
Topic 3 The world of Living : Reproduction in Animals Part 2
15:00mins
28
Topic 3 The world of Living : Reproduction in Animals Part 3
3:26mins
29
Topic 4 Moving things, people and ideas : Acids, Bases and Salts
14:13mins
30
Topic 4 Moving things, people and ideas : Acids, bases and Salts Part 2
7:51mins
31
Topic 4 Moving things, people and ideas : Motion and time
13:35mins
32
Topic 4 Moving things, people and ideas : Motion and time Part 2
6:21mins
33
Previous year questions 2018
13:56mins
34
Topic 4: Force and Pressure Part 1
8:51mins
35
Topic 4 : Force and Pressure Part 2
11:32mins
36
Topic 4: Force and Pressure Part 1
7:12mins
37
Topic 4 : Friction Part 1
13:32mins
38
Topic 4 : Friction Part 2
5:13mins
39
Topic 4 : Sound
14:48mins
40
Light Class 8 Science NCERT
14:58mins
41
Light Class 8 NCERT Part 2
13:01mins
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