Page 63 - Carvaan Science-2

6. The change of water vapour into liquid is called _______________ .
(a) condensation (b) evaporation (c) freezing

B. Fill in the blanks with the correct word : Problem Solving
closed, waste, Ice, Steam, tap, rain, Sun, gas

1. In our homes, we get water from _________________________ .

2. We should keep clean water in a _________________________ container.
3. We should not _________________________ water.

4. ______________________ is also called water vapour.
5. Clouds bring us ______________________ .

6. Water vapour is water in the form of ______________________ .
7. The heat of the ______________________ heats up the water of rivers and seas.

8. ______________________ is the solid form of water.
C. Match the following : Problem Solving

1. ground water (i) taps
2. surface water (ii) rain

3. main source of water (iii) tube well

4. water in houses (iv) river
5. solid (v) water

6. liquid (vi) steam
7. gas (vii) ice

D. Write (T) for True and (F) for False statements : Decision Making
1. Water exists in two forms. ____________

2. Gaseous form of water is very important for all living things. ____________
3. Water changes into ice on freezing. ____________

4. Water on boiling changes into steam. ____________
5. Water can change from one form to another by heating or cooling. ____________
E. Give one word answer for the following : Intellectual Skills

1. Change of water into water vapour on heating. ______________________

2. Change of water into ice on cooling. ______________________
3. Change of ice into water on heating. ______________________
4. Change of water vapour into water on cooling. ______________________

F. Answer the following questions : Written and Communication Skills
1. Why do plants need water?
______________________________________________________________________________

63 Science-2