Name the processes that take place in a water cycle.  

How does filter paper help in the purification of water?

Differentiate between the sea breeze and land breeze.

Differentiate between snow and hail.

What causes the wind to blow? Explain.

Explain how visible impurities can be removed from dirty water.

State four ways by which we can save water.  

Write a short note on water cycle.  

Rajat took out a cold water bottle from the refrigerator and placed it on a table. After a while he found some water droplets sticking to the outside of the bottle. He is puzzled as he does not know where did these drops of water come from. Can you help him?