NCERT ACTIVITY 1.1
Take 100 ml beaker.
Fill half the beaker with water and mark the label of water.
Dissolved some salt or sugar with the help of glass rod.
Observe any change in water level.
What you think has happened to the salt.
Where does it disappear.
Does the level of water change?
NCERT ACTIVITY 1.2
Take 2 or 3 crystal of potassium permanganate and dissolve them in 100 ml of water.
Take out approximately 10 ml of the solution and put it into 90 ml of clear water.
Take out 10 ml of the solution and put it into another 90 ml of clear water.
Keep diluting the solution like this 5 or 8 times.
Is the water still coloured?
NCERT ACTIVITY 1.3
⏩ Coming soon…
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