Page 70 - Carvaan Science-2

E. Write the use of the following : Intellectual Skills

1. Wind ________________________________________________________________

2. Wind vane ________________________________________________________________

F. Answer the following questions : Written and Communication Skills

1. Why do we need air?

______________________________________________________________________________

2. What is polluted air?

______________________________________________________________________________

3. Why should we plant more trees?

______________________________________________________________________________

4. What is a breeze?

______________________________________________________________________________

5. What are storms? How are storms harmful to us?

______________________________________________________________________________

LET'S HAVE FUN

• Let us know how the wind helps evaporation happen quickly : Experiential Learning

Take two wet handkerchiefs. Put one in a room where the fan is on. Put another

in the room where the fan is off. After some time observe which handkerchief
dries quickly.

You will see that the handkerchief which was in the room where the fan was on,
dries quickly. Thus, it is clear that the wind helps to evaporate water quickly.

70 Science-2