I would like to thank my students Hamza Sharaf, Talal Al Mutairi, and Abdulla Senan, for answering the Bonus Question, handed out during the last week of the semester, Spring 2003. They deserved the extra points, which were added to their final scores of the Class Work.I would also like to thank them for their participation in the final class project, creating their own websites used as their On-line Portfolios.Moreover, I decided to grant Abdulla few more extra points for prvoding the best answer, in addition to sending it to me using attachment via an email message.This made it easier for me to blog his answer, here. You can read Abdulla's answer blogged, below.
EfS 161 Instructor: Buthaina Al Othman
The Water Cycle

1. What is the definition of evaporation?
Evaporation is the process by ,which a liquid absorbs heat and changes to vapor.

2. What happens to liquid molecules?
It move around faster.

3.What happens to vapor when it is no longer in liquid form?
Vapor begins to rise into the atmosphere.

4.What is condensation?
It is the process by which a vapor or gas loses heat and turns into a liquid.

5. Where is heat transferred?
It move from high temperture to a lower temperture .

6. What does the atmosphere act like?
Like a huge refrigerator.

7. What happens to vapor after too much heat is lost?
It rises to higher altitudes and lower temperture .

8. Look at the diagram The Water Cycle . Write the first two steps.
a. The sun heats the ocean
b. Ocean water evaporates an rises into the air.

F. The great Mystery:

9. Which part of a cloud is positively charged?
The upper portion of the cloud.

10. Do scientists know why clouds have a charged?
No they don`t.


11. How many water/ice droplets are in a cloud?
It contains millions upon millions of water droplets and ice.
12. What happens to electrons during collisions?
They are knocked off of the rising moisture.

13. What is a capacitor?
It is an electrical device that consists of two conductive surfaces separated
By an insulating media.

How Thunder is Created?

Thunder is sound ,which became after the lightning. It is created from lightning itself. Lightning is a rapid movement of charges from the clouds and the earth toward each other. During a storm, the clouds can become charged one way, and the earth another. Eventually, these charges build up until they can move toward each other.