Boiling
Boiling: Overview
This topic covers concepts such as evaporation, evaporation in open sources of water, and condensation.
Important Questions on Boiling
When the pressure on water is increased the boiling temperature of water as compared to will be
Fill in the blank using the right word from the bracket given below.
(three, blue, cloud, ice)
Evaporated water becomes a _____.
Unscramble the following word to make a meaningful word.
VPOEAARTONI
Look at the picture carefully and answer the following question.
The process by which B changes into C.
Name the process shown in this picture. (Choose from Freezing / Evaporation / Melting)
Why do puddles dry faster on a windy day?
Why do ponds dry up in summers?
Evaporation is the reverse of condensation.
Name the process of changing from liquid to gaseous state.
| E |
Why does a liquid change into vapour on heating? What is the name given to the process?
Wind helps clothes to dry faster.
Define the terms (i) evaporation (ii) condensation.
What happens to water on heating?
Unscramble VEAOPUARITNO to answer the below question:
The process by which a liquid turns into gaseous vapour.
Take some water in a beaker and place a thermometer in it. Heat the beaker on a spirit lamp. Note the boiling point of water. Repeat the activity, adding salt or sugar to the water and note the boiling point again. What do you infer from it?
Name the following.
The process of changing water into water vapour.
What helps water to change into vapour?
The heat of the sun changes vapour into water.
Fill in the blank with a correct word:
The change of water into water vapour is called _____ (evaporation/precipitation).
Answer in a word.
The process of change of water to water vapour.
