9:56
Class 8 | Chapter 1 | CROP PRODUCTION | QUE. & ANS. | RATNA SAGAR | LIVING SCIENCE @nksclasses
8:31
Class 8 | Chapter 2 | MICROORGANISM | QUE. & ANS. | RATNA SAGAR | LIVING SCIENCE @nksclasses
7:18
Class 8|Chapter 3|SYNTHETIC FIBRES AND PLASTICS|QUE.& ANS.| RATNA SAGAR |LIVING SCIENCE @nksclasses
9:55
Class 8 | Chapter 4 | METALS AND NONMETALS | QUE. & ANS. | RATNA SAGAR |LIVING SCIENCE @nksclasses
8:12
Class 8 | Chapter 5 | COAL AND PETROLEUM | QUE. & ANS. | RATNA SAGAR | LIVING SCIENCE @nksclasses
9:22
Class 8 | Chapter 6 | COMBUSTION AND FLAMES | QUE. & ANS. |RATNA SAGAR |LIVING SCIENCE @nksclasses
8:43
Class 8 | CHAPTER 7 | CONSERVATION OF PLANTS AND ANIMALS | QUE. & ANS. | RATNA SAGAR | @nksclasses​
6:35
Class 8 | CHAPTER 8 | CELL-STRUCTURE AND FUNCTIONS | QUE. & ANS. | RATNA SAGAR | @nksclasses
9:18
Class 8 | Chapter 9 | REPRODUCTION | QUE. & ANS. | RATNA SAGAR | LIVING SCIENCE @nksclasses
7:33
Class 8|Chapter 10|REACHING THE AGE OF ADOLESCENCE|QUE.&ANS.|RATNA SAGAR|LIVING SCIENCE @nksclasses
9:14
Class 8 | Chapter 11 | FORCE AND PRESSURE | QUE. & ANS. | RATNA SAGAR | LIVING SCIENCE @nksclasses
6:49
Class 8 | Chapter 12 | FRICTION | QUE. & ANS. | RATNA SAGAR | LIVING SCIENCE @nksclasses
8:09
Class 8 | Chapter 13 | SOUND | QUE. & ANS. | RATNA SAGAR | LIVING SCIENCE @nksclasses
10:48
Class 8 | Chapter 14 | SOME NATURAL PHENOMENA | QUE. & ANS |RATNA SAGAR LIVING SCIENCE @nksclasses
7:52
Class 8 | Chapter 15 | CHEMICAL EFFECTS OF ELECTRIC CURRENT | QUE. & ANS. |RATNA SAGAR| @nksclasses
8:07
Class 8 | Chapter 16 | REFLECTION OF LIGHT | QUE. & ANS. | RATNA SAGAR | LIVING SCIENCE @nksclasses
10:56
Class 8 | Chapter 17 | REFRECTION AND DISPERSION OF LIGHT | QUE. & ANS. | RATNA SAGAR | @nksclasses
12:10
Class 8 | Chapter 18 | THE UNIVERSE | QUE. & ANS. | RATNA SAGAR | LIVING SCIENCE @nksclasses
10:42
Class 8 Chapter 19 | POLLUTION OF WATER AND AIR QUE. & ANS. RATNA SAGAR LIVING SCIENCE @nksclasses
