| |
 |
|
|
| R1.2
A PARTICLE EXPLANATION |
|
 |
LINKS |
 |
|
|
|
|
Watch
the animation and answer the questions.
|
|
 |
Think for Yourself... |
 |
Why does a bigger
surface area increase the rate of evaporation? 
|
|
Why does water
evaporate faster in a warmer room?
|
|
Look at the animation
again. Notice that some water particles are returning.
If 50 water particles leave and 20 water particles return
every second, what is the overall rate of evaporation?
|
|
How would a fan
affect the rate at which water particles leave the surface?
|
|
So how can a fan
speed up the rate of evaporation?
|
| |
|
|
|
|
|
|
| a
Science Enhancement Programme CD-ROM 2005 |
|
user
guide |
| |
|
|
|
|
