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Science IX Video Notes

1. Measurement

1.1 Physical Quantity And Their Units
1.2 Length , Mass And Time And Conversion Of Units

2. Force

2.1 Newtons First And Second Law Of Motion
2.2 Newtons Third Law Of Motion And Numericals

3. Simple Machine

3.1 Machine Adavantage And Velocity Ratio
3.2 Efficiency And Friction In A Machine And Lever
3.3 Pulley, Inclined Plane, Wheel And Axle
3.4 Moment And Numericals

4. Work, Energy and Power

4.1 Work, Energy And Its Types
4.2 Power And Transformation Of Energy
4.3 Numericals On Work Energy And Power

5. Light

5.1 Refraction Of Light And Its Laws
5.2 Effects Of Refraction Of Light And Total Internal Reflection
5.3 Dispersion Of Light , Electromagnetic Waves And Its Properties

6. Sound

6.1 Sources And Nature
6.2 Wave Velocity, Medium And Spectre
6.3 Reflection And Refraction
6.4 Intensity And Pitch
6.5 Numericals

7. Current Electricity and Magnetism

7.1 Ohm's Law
7.2 Resistance
7.3 Terrestrial Magnetism
7.4 Current Electricity And Magnetism - Magnetic Field

8. Classification of Elements

8.1 Atom, Atomic Structure, Electronic And Sub-Shell Configuration
8.2 Valence Electrons, Radicle And Molecular Formula
8.3 Chemical Bonds, Its Types And Molecular Weight

9. Chemical Reaction

9.1 Physical And Chemical Change, Chemical Reaction And Balanced Chemical Equations
9.2 Method Of Balancing Chemical Equation
9.3 Types Of Chemical Reactions And Catalyst

10. Solubility

10.1 Solution And Its Types
10.2 Solubility Curve And Crystallization

11. Some Gases

11.1 Hydrogen
11.2 Oxygen
11.3 Nitrogen

12. Metals

12.1 Metals And Properties Of Metals
12.2 Differences Between Metals And Non-Metals, Role Of Metals In Organisms

13. Carbon and Its Compounds

13.1 Nature And Sources Of Carbon
13.2 Physical And Chemical Properties Of Carbon
13.3 Organic And Inorganic Compounds

14. Water

14.1 Sources Of Water And Properties Of Water
14.2 Uses And Types Of Water, Process Of Removal Of Hardness Of Water

15. Chemical Fertilizer Used In Agriculture

15.1 Differences Between Organic And Inorganic Fertilizers
15.2 Fertilizers And Its Types
15.3 Inorganic Fertilizers And Its Advantages And Disadvantages

16. Classification Of Plants And Animals

16.1 Introduction
16.2 Invertebrates
16.3 Vertebrates
16.4 Mosquito

17. Adaption Of Organism

17.1 Terrestrial And Aquatic Adaption
17.2 Bacteria
17.3 Virus
17.4 Fungi And Protozoa

18. System

18.1 System - Plant Tissue - Meristematic Tissue
18.2 System - Plant Tissue - Simple Permanent Tissue
18.3 System - Plant Tissue - Complex And Special Permanent Tissues
18.4 Skeletal System - Structure Of Bones, Types Of Bones And Its Functions
18.5 Skeletal System - Axial Skeleton And Skull
18.6 Skeletal System - Axial Skeleton - Vertebral Column And Thoracic Cage
18.7 Skeletal System - Appendicular Skeleton
18.8 System - Digestive System
18.9 System - Respiratory System

19. Senses Organs

19.1 Eye
19.2 Nose
19.3 Ear
19.4 Tongue
19.5 Skin

20. Evolution

20.1 Organic Evolution, Homologous And Analogous Organs
20.2 Evidences Supporting Evolution
20.3 Lamarkism And Its Criticism
20.4 Darwanism And Its Criticism

21. Nature And Environment

21.1 Biotic And Abiotic Factors
21.2 Ecosystems
21.3 Food Chain, Food Web And Ecosystem Services

22. Natural Hazard

22.1 Disaster Management And Its Cycle
22.2 Glacier Flood, Glacier Lake Outbrust And Cyclone

23. Green House

23.1 Green House Effect And Artificial Green House
23.2 Climate Change

24. The Earth In The Universe

24.1 Units Used In Astronomy
24.2 Solar System And Motion Of The Earth
24.3 Phases Of The Moon
24.4 Shadow And Lunar Eclipse
24.5 Solar Eclipse

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