This is an Introduction video for Class 9th Science Chapter 1 Matter in our surroundings from NCERT book for students for Batch SEED 2024-2025.

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0:51 What is matter?
3:53 Physical nature of matter
6:44 Characteristics of particles
13:32 Diffusion
22:36 States of Matter
32:16 Can matter change its shape?
33:09 Melting or fusion
35:04 Vaporization
37:12 Solidification or Freezing
39:05 Sublimation
41:30 Condensation
44:44 Deposition
47:58 Effect of change of temperature
53:26 Latent Heat
59:47 Types of latent heat
1:01:17 Effect of change of pressure
1:03:48 Evaporation
1:15:14 Evaporation vs Boiling


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