Tuesday, November 24, 2009

Geo Active Questions and Awnsers 1-5

1.)List the main reasons for water scarcity?
A.) The main reasons for water scarcity are variations in climate, land degradation population growth, and water pollution.
2.)What is drought? What type of hardships do you think that drought could cause if you were living in a village in a poor country such as Ethiopia?
A.) Drought is a period of below average precipitation. I think that if a drought happened in Ethiopia many people would die.
3.)How does land degradation affect the supply of fresh water?
A.) Land degradation would not allow the soil to store water.
4a.)What is El Nino?
A.) El Nino is a warming where the moist easterly trade winds reverse their direction and cause droughts in certain areas and flooding in others.
4b.)Why does El Nino often cause drought in Australia?
A.) High pressure builds up over Australia this prevents moist tropical air to reach it for a long time.
5.)Observe the map showing the global effects of El Nino in 1982-1983.
5a.)What effects does El Nino have on the availability of fresh water?
A.) In the countries that are dry it would limit the amount of water. And in the heavy rain areas it would cause floods that would pollute the fresh water and can cause diseases.
5b.)Name the countries and describe the problems that arose from decreased rainfall caused by El Nino?
A.)Africa had reduced corn crop. China had agricultural land under threat from drought in the northern part and threats of flooding in the southern. Philippines had lower rice harvest. Papua New Guinea had failure of food crops and had to have food aid. Australia grain growing areas were threatened by the drought conditions.

Wednesday, November 18, 2009


The Fire Thief

By: Terry Deary

*****

The fire thief is a really good read. It is about a young demigod who is punished for giving fire to the humans. He is punished by having him chained to the Caucasus Mountains in Olympus the home of the gods. And he is tortured by having his liver torn out by a monstrous bird called the 'Avenger'. He is a terror in the story he takes the form of an eagle to fly to Prometheus and eat his liver. While the next day Prometheus is alive again and the Avenger eats his liver since the past 220 years. But one night Prometheus had Hercules come up and break his chains that bound him to the rock. I do not want to reveal any more you will have to read it you're self. It is a really good book it keeps you from stopping it is intense and amazing. I have finished the first 2 books and am on the 3rd. Hope you read the book. You won't regret it.

Awnsers to the Question's


1.A)2.5 % percent the world has of fresh water.


2.A)Fresh water is found in ice on land, in groundwater in the soil, and in the rivers and lakes.


3.A) Depending on the area that people live in determines the water availablity, because water can be more abudunt in certain areas.


4.A) It begins with low rainfall and then increases as it gets closer to the equator. Then it will begin to decrease again.

4.B)It begins with low rainfall and slowly increases.


5.A) Australia, Asia, South America and North America have the most water availablity per person.

5.B) Africa, and Europe hae the least amount of water avialablity per person.


6.A)The main uses of water are for Agricultural.

6.B) The ones that have increased over the last century is Agricultural, Industrial and Resservior losses from evaporation and seepage.
The Bintaro Lama Kampung Field Trip
Last Thursday we took a trip to Bintaro Lama Kampung. Bintaro is sort of a water treatment plant in it's own cool and unique way. We only saw stations 2, 4 and 6. So those are the only ones I can talk about.
station 2: Learning
at station 2 we saw young kids and mostly adults. That had just been learning what goes on with water and how water is cleaned so that way they can do their part for the world by helping at Bintaro. They learn how the water gets it's diseases and how it gets dirty and the process.
Station 4: Filtration
at station 4 we saw how they clean the water. They use these tabs that make the sediment turn into floc. These tablets clean the water and after the floc forms they take out the floc. And then they scoop the water out and put it into a cloth that is put over a cup and then the water slowly goes into the class and appears mainly clear. Then after all the water is in the cup they transfer it into a bigger pot that is able to offically clean the water. When the water is put into the pot it takes roughly about 20-30 minutes to be able to almost drink.
Staion 6: Cleansing
At station 6 they showed us how to clean the water to be able to really drink the water. They had 2 different cleansers that are opptional. One is called 'Air rahmat' that is a liquid that can treat 10 gallons of water with just one small cup in 20-30 minutes. And then the 2nd one is a tablet which name escapes me but one tablet can clean 9 or 20 gallons of water in the same amount of time as the Air rahmat 20-30 minutes.
Thanks:
I would like to thank the teachers for their hard work in organizing the field trips to the water treatment plant and the Bintaro Lama Kampung. And my parents for letting me use the camera for the field trip. And my partners on the project that helped a lot: Emma and Natalie.
By: Ashley Zimmerman

Tuesday, November 10, 2009

Homework



Activities



1.Q. What percentage of the world's supply of water is fresh water?



2.Q. Where is the world"s supply of fresh water found?



3.Q. Even though the supply of fresh is abundant it is still a problem. Why?


4.Q. Observe the map of world average annual precipitation (opposite).
a). Describe the changes in rainfall that occur as you move from the southern to the northern tip of Africa.

b). Describe the changes in rainfall that occur as you move from the western to the eastern tip of Australia along the Tropic of Capricorn.

5. Observe the diagram of water availability per person.

a). Which parts of the world appear to have a large amount of water available per person?

b). Which parts of the world appear to have a small amount of water per person?

6. Observe the diagram of water use.

a). What are the main uses of water?

b).Which uses have increased the most over the last century?



Water Treatment Stages


Stage 1:Preliminary Treatment

Preliminary treatment involves taking the water form any reservoir and getting it ready for the other stages of the cleaning process.


Stage 2:Coagulation
Coagulation is when the alum is being added and the dirt and other particles are being pushed to the bottom of the water.


Stage 3:Flocculation
Flocculation is when the sediment or the dirt particle's join and link together to create floc. And the floc rises to the top of the water it can be collected.


Stage 4:Clarification
Clarification is when all of the leftover sludge and etc. have fallen at the bottom. And then after a while they collect or scrape the sludge off of the bottom after the water has been moved out and then repeat over and over the same step over.

Stage 5: Filtration
Filtration is when all of the other things that aren't important like the left over dirt and etc moves down to the bottom and the water moves out of the container and is moved to the water tanks and is distributed around though the pipes and into homes.

Tuesday, November 3, 2009

My Poem Video and Lyrics

How to have to dry the dishes By:Shel Silverstein

If you have to dry the dishes.

(such an awfull boring chore)

If you have to dry the dishes.

(stead of going to the store)

If you have to dry the dishes and you drop one on the floor.

Maybe they won't let you dry the dishes anymore.

Why I chose this poem

I chose this poem because it was funny, easy to remember and my parents thought that I did really good reading cause I cahnged my voice when I read.

Sunday, November 1, 2009

Water Cycle Evaporation, Condensation, Precipatation and Infiltration and how they are linked together.


Evaporation

Evaporation is the vaporization of a liquid and the reverse of condensation. A type of phase transition, it is the process by which molecules in a liquid state (e.g. water) spontaneously become gaseous (e.g. water vapour). Generally, evaporation can be seen by the gradual disappearance of a liquid from a substance when exposed to a significant volume of gas. Vaporization and evaporation however, are not entirely the same processes. For example, substances like caesium, francium, gallium, bromine, rubidium and mercury may vaporize, but they do not evaporate as such.

Condensation

Condensation is the change of the physical state of aggregation (or simply state) of matter from gaseous phase into liquid phase and the reverse of evaporation. When the transition happens from the gaseous phase into the solid phase directly, bypassing the liquid phase, the change is called deposition. While condensation can occur in many different substances, the condensation of water vapor in air is by far the most common experienced (such as the formation of dew on a cold drink).

Precipatation

Precipitation is the formation of a solid in a solution during a chemical reaction. When the reaction occurs, the solid formed is called the precipitate, and the liquid remaining above the solid is called the supernate. Powders derived from precipitation have also historically been known as flowers.

Infiltration

Infiltration is the process by which water on the ground surface enters the soil. Infiltration rate in soil science is a measure of the rate at which soil is able to absorb rainfall or irrigation. It is measured in inches per hour or millimeters per hour. The rate decreases as the soil becomes saturated. If the precipitation rate exceeds the infiltration rate, runoff will usually occur unless there is some physical barrier. It is related to the saturated hydraulic conductivity of the near-surface soil. The rate of infiltration can be measured using an infiltrometerr.