27:19

Radioactivity

21:15

Radioactivity

22:13

Displacement reactions ,,metals and non metals uses

12:31

Sieving method

15:00

Reducing property

15:44

Alkali metals Solubility in liquid ammonia

19:40

Different regions in tongue

17:01

Winnowing

16:53

Structure of the atom

14:26

Reaction with acids

20:49

Reaction of non metals with oxygen

12:41

Threshing

26:07

Alkali metals Rxn with Halogen

19:11

Chemical properties of metals and non metals

20:02

Effect of saliva on starch

18:04

Metallic and non metallic properties

11:57

Hand picking method

16:26

Mouth and buccal cavity

07:09

Transition and inner transition elements

12:11

Long form of periodic table

18:14

Physical properties

20:03

Reaction with Air,,,,, Iit

15:37

Atomic number and mass number Iit

11:10

Translucent

24:06

periodic classifications

13:12

Trends in modern PT

23:06

How Nutrients replenished in the soil

13:35

Mole concept

08:18

Mole concept

20:32

transparency and opeque

19:20

Chemical properties of alkali metals

27:38

conductivity, ductile and sonorous of metals

02:53

softness

16:45

Density

11:40

photoelectric effect IIT

25:02

soluble and insoluble

22:27

Saprotrophs

21:15

properties of 13th grp

18:04

properties of materials

21:16

variation of properties IIT

16:36

Colour property IIT

09:57

Reducing property IIT

16:52

Metals and non metals

19:19

List of materials and objects

17:55

Other modes of nutrition in plants

10:22

Occurens of elements in 13th grp

11:24

Electronic configurations of 13 th group elements

17:23

Synthesis of plant food other than corbohydrates

10:26

Position of elements in modern PT

13:04

IIT 13th group elements

15:54

Sorting materials in to groups

23:30

IIT oxidation states and metallic character

16:54

Activity photosynthesis

25:31

Molecular mass

03:09

Cells

10:08

Knitting process

03:49

Mind map about fabric

11:05

Photosynthesis in plants

08:12

Autotrophs and Heterotrophs

16:17

Yarn to fabric