What are Soluble Substances? Name them
they completely dissolve in a liquid to form a solution. Sugar, Salt
What are insoluble substances? Name them
They do not completely dissolve in a liquid. Sand and Chalk
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
Which dissolves faster? Smaller or bigger crystals? Why?
Smaller.
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
Why is water called a Universal solvent?
Because it dissolves most substances
Give an example of gas in gas.
Oxygen, Nitrogen
