1. Matter in Our Surroundings

2. 1.1 Physical Nature of Matter

3. What is matter made of ?

4. 1.1.1 Matter is Made Up of Particles

5. Activity: Potassium Permanganate in Water

6. Activity: Potassium Permanganate in Water

7. 1.1.2 How Small are These Particles of Matter?

8. 1.2.1 Particles of Matter Have Space Between Them

9. 1.2.1 Particles of Matter Have Space Between Them

10. 1.2.2 Particles of Matter are Continuously Moving

11. 1.2.2 Particles of Matter are Continuously Moving

12. What is diffusion ?

13. 1.2.2 Particles of Matter are Continuously Moving

14. 1.2.3 Particles of Matter Attract Each Other

15. 1.2.3 Particles of Matter Attract Each Other

16. 1.3 States of Matter

17. 1.3.1 The Solid State

18. 1.3.1 The Solid State

19. 1.3.1 The Solid State

20. 1.3.2 The Liquid State

21. 1.3.2 The Liquid State

22. 1.3.2 The Liquid State

23. 1.3.3 The Gaseous State

24. Activity: Compressibility of gases

25. 1.3.3 The Gaseous State

26. 1.3.3 The Gaseous State

27. 1.3.3 The Gaseous State

28. 1.4 Can Matter Change its State?

29. 1.4.1 Effect of Change of Temperature

30. Activity: Record the temperature of water as it boils

31. 1.4.1 Effect of Change of Temperature

32. The Melting Point

33. The Melting Point

34. Behaviour of temperature during melting

35. Latent Heat

36. Latent Heat of Fusion

37. The Boiling Point

38. Latent Heat of Vaporisation

39. 1.4.2 Effect of Change of Pressure

40. What is sublimation?

41. Sublimation of CO2

42. Impact of Pressure & Temperature

43. Interconversion of the states of matter

44. 1.5 Evaporation

45. 1.5.1 Factors Affecting Evaporation

46. 1.5.1 Factors Affecting Evaporation

47. 1.5.2 How Does Evaporation Cause Cooling?

48. Wearing cotton clothes in the summer

49. Water droplets on a cold glass of water