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Tuesday 20 August 2019

August 20, 2019

CHAPTER -5 Separation of Substances

CHAPTER -5
Separation of Substances


  1. What is pure Substances or define substances?
  2. what is impure substances ?
  3. what is element or define element?
  4. what is compound or define compound?
  5. Need for separation component of a mixture,
  6. Methods of separation,
  7. Threshing
  8. winnowing
  9. Handpicking
  10. sieving
  11. magnetic separation
  12. floating and sinking method
  13. sedimentation and decantation 
  14. loading
  15. filtration
  16. separation of solid from other solid
  17. separation of water soluble solid or separation solute soluble in solvent,
  18. Evaporation 
  19. condensation
  20. separation of insoluble solid from liquid,
  21. separation of immiscible liquids,
  22. separation solute not soluble in a solvent












August 20, 2019

SCIENCE CHAPTER 4 Sorting Materials Into Group notes and N.C.E.R.T QUESTION

SCIENCE CHAPTER 4
Sorting Materials Into Group



  1. What is Matter or define matter?
  2. what is Material or define materials?
  3. General properties of Materials?
  4. Hardness
  5. Apearance
  6. Through Visibility 
  7. Good and bad conductor of electricity
  8. Good and bad conductor of heat.
  9. combustible substance.
  10. Solubility and Insoluble substance in water
  11. Miscible and immiscible.
  12. Some N.C.E.R.T. QUESTION.










Sunday 18 August 2019

August 18, 2019

Chapter - 2 Is Matter around us pure



SCIENCE 9th CLASS

Chapter - 2 
Is Matter around us pure
Topic
  1. Introduction
  2. Block diagram of substances
  3. Pure and impure substances
  4. Types of  pure substances
  5. Element
  6. metal
  7. Non metals
  8. Metalloids
  9. Comparison between metal and non metal
  10. Compound
  11. Types of compound
  12. Inorganic compound
  13. Organic compound
  14. Characteristic of compounds
  15. Mixture
  16. Homogeneous mixture
  17. Heterogeneous mixture
  18. Diff. between compounds and mixture
  19. Solution
  20. Solubility of a solute
  21. Saturated solution
  22. Unsaturated solution
  23. Suspensions
  24. Characteristic of suspension
  25. Colloids
  26. Characteristic of colloids solutions
  27. Tyndall Effect
  28. Diff between suspension , colloidal and true solution.
  29. Classification of colloids
  30. Separation of mixture