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EXPERIMENTS WITH WATER

EXPERIMENTS WITH WATER. LESSON - 7. K.V.H.V.F.AVADI. HOMOGENEOUS MIXTURE (soluble substances). HOMOGENEOUS MIXTURE. SOLUBLE SUBSTANCES. SUGAR SOLUTION. SUGAR. WATER. Milk in water. INSOLUBLE SUBSTANCES. Oil does not mix with water.

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EXPERIMENTS WITH WATER

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  1. EXPERIMENTSWITH WATER LESSON - 7 K.V.H.V.F.AVADI

  2. HOMOGENEOUS MIXTURE(soluble substances)

  3. HOMOGENEOUS MIXTURE SOLUBLE SUBSTANCES SUGAR SOLUTION SUGAR WATER

  4. Milk in water

  5. INSOLUBLE SUBSTANCES

  6. Oil does not mix with water

  7. HETEROGENEOUS MIXTURE(chalk powder in water)Insoluble

  8. DEAD SEA- salty water

  9. SALT FROM DEAD SEAIt contains 300 grams of salt in 1 litre of water

  10. A MAN FLOATING IN DEAD SEA(due to boyancy )

  11. Floating in dead sea (not drowning)

  12. NEEDLE FLOAT IN WATER (due to upthrust )

  13. Objects that sink / float

  14. EXPERIMENT

  15. DO AND LEARN

  16. Object that sinks

  17. OBSERVE AND SAYWhich objects float?

  18. LEAVES FLOAT IN WATER

  19. Soap cake sinks in water

  20. Soap cake sinks in water

  21. Ice cube floats in water

  22. Wooden boat floats in water

  23. Sinking ship due to over load

  24. Wooden boat occupy hollow space inside – so float

  25. IRON BOATS FLOAT – HOW?

  26. A LEADER LEADS…….a long walk from Ahmedabad to Dandi seashore in Gujarat

  27. Protest against salt law on March 12, 1930

  28. Gandhiji’s Dandi march

  29. Salt preparation from sea water

  30. Salt preparation from sea water The sea water is collected in shallow beds. The shallow beds are dug in the sand. Water is allowed to dry in the sun. After the water dries, the salt remains on the ground.

  31. Salt from sea after sun drying (evaporation)

  32. REVIEW .GIVE 1 EXAMPLE FOR THE FOLLOWING: A soluble substance An insoluble substance A floating object A sinking object

  33. WRITE A PARA ABOUT….. 1. Dandi march 2.Dead sea 3. Salt preparation from BRINE

  34. FILL IN THE BLANKS… 1.The leader who lead Dandi March was ________. 2.Salt is prepared from _________. 3.Dandi yatra took place on _______from _______to ________. 4.Dead sea contains ______grams of salt in 1 litre of water. 5._______(Water drops / oildrops)slide down quickly.

  35. WELL DONE.......GO AHEAD BY ANNIE-kvHVF avadi

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