What are Soluble Substances? Name them
they completely dissolve in a liquid to form a solution. Sugar, Salt
What happens when you stir in Flour in water? Is it soluble? What kind of a solution do you see?
It is not soluble. It is a cloudy solution
Why is water called a Universal solvent?
Because it dissolves most substances
What are insoluble substances? Name them
They do not completely dissolve in a liquid. Sand and Chalk
Why do you say Muddy water is not clear solution? Do the substances dissolve in water?
It contains insoluble substances that do not dissolve in water? eg - mud, leaves, stones
Which dissolves faster? Smaller or bigger crystals? Why?
Smaller.
Give an example of gas in gas.
Oxygen, Nitrogen