Explain the process involved in the water cycle?
You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster?
The physical process of converting liquid to gas is called ___________________.
Why gases are easily compressible? Give reason.
The process of conversion of water into its vapour is called as ______.
The process of conversion of liquid to vapour is called__________.
When salt is mixed in water, it's level remains unchanged, why?
Why do wet clothes placed on a clothes line dry after sometime? Explain.
when a solid dissolves in a liquid , the volume of the liquid _____________(changes/does not changes)
Dry ice is the solid form of carbon dioxide and is used as a refrigerant.
Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.
What Is the Principle of Evaporation?
- Water Cycle
Explain the evaporation of liquid on the basis of kinetic theory.
Condensation is the process of change of state from gas to liquid.
Change of state from liquid to gas.
Change of state from gas to liquid.
Water vapour is present in the atmosphere only during monsoons.
This method is used to separate mixture whose components have different densities.
(a) surface area
(b) humidity and wind
(d) all of these
Out of boiling and evaporation, which is a surface phenomenon ? Explain.
Water kept in sunlight gets heat from the sun and is evaporated. But how does water kept under the shade of a tree also gets evaporated? Explain.