Owls Emily's Presentation

Owls

Owls are kind of bird animal that live on the tree .

Species of Owls
It has been widely

What is Logger?
-Loggers are the people who cut the tree out from the forest
-They cut the tree for the company
-carpenter
-paper factory
-Furniture factory

Effect of Loggers to Owls
-Destroy the environment of owls
-Food (Such as insects, worms ,spiders ,lizards and small birds
-Habitat(Example:Home)
-Shelter (Example :bunker on the tree)

Visual Presentation

Positive Feedback

Closed System (Vivian,Mind and James )

Closed System (when the surrounding affect with the system)

What is closed system ?

An isolated system that has no interraction withj the surrounding

Example

Closed pot because its the energy inside just cycling themselves inside it.

Opened System (Angel,Nat and James)

Open System

What is Open System

Its a system that interact with other systems or the environment by exchanging energy and matter with its surrounding

Boiling soupin an opened saucepand - transfer of energy, the soup receive the energy from the air outside causing evaporation

Water Cycle

The sun give energy to the water by heating it up. once the water receive the heat, it turns into steam and flow in the air

Isolated System (Tee,Jinny,Kim)

Isolated - a system which none of the matter or energy intergeres with. These system cannot be found naturally.

Example is Universe itself where the surround  may change but the boundaries of the system cannot be changed 

In the closed system an energy can be changed but not the matter . For the isolated system both energy and matter cannot be changed at all 

Negative Feedback (Far, New,Mugi)

What is negative feedback 

-Its a reaction to a system which causes decrease in a function in order to maintain equailibrium 

-It works by reducing theeffect of one system 

Example 1 

1:The higher the body temperature, the more person sweats 

2:The more a person swears, the lower will be body temperature 

3:In this system, high body temperature causes sweating, but sweating in turn causes body temperature lower down 

Flow and Storage (Pleng,Jihyun,Kan)

Explanation from textbook

Flow:movement through a system in the form of inputs and outputs. Can be either tranfers or transformations 

Storage: The stock or reservoir of energy and matter in a system 

What is flow and storage? 

Flow (inout and outputs) and storage(matter of energy or stock) is energy and matter flow through and stored in our ecosystem

James's Presentation

LoveCanal

At Niangara


What Happened ?

After world war 2 love canal become a plave to dump toxic waste

The name of the toxic company was called the Hooker Company

On 1953 the Hooker Comapny sell to a school the land for 1 dollar

The Hooker Company warn the school what's under the ground


Few years later the toxic waste leak out from the landfill(place where we dump trashes)

How did the people find out ?

When the children are outside playing, they came back with burns on the bodies.



Health Problems 

Birth Defect: Enlarged head ,hand and legs

Cancer

On August 2, 1978 The new york state commissioner of Health was telling pregnant women and children under 2 years old to leave Love Canal immediately

People start to protest to let the government get them out of the Love Canal



Moving Out

The government  agree to buy the house from the people in Love Canal

Spend 7 million dollars

Some people choose to stay(safe area)



Building fences 

The government build a fence around the danger zone


Reopned 

Restore Love Canal in June 4 1980

But they didn't take the toxic waste out

Most of the toxic waste area was reburied

The houses were far away from where toxics were leaking

Tee's Presentation

What is DDT?

- the chemical name is Dichloro - Diphenyl - Trichloroethane

- this chemical helped to stop malaria by killing the mosquitoes and insect

DDT that dissolve in fat can become more concentrated as they move up an aquatic food chain, the process called “Bioaccumulation’

DDT was found by chemist called Zeidler in 1874

After DDT has been sell out in the public, it is widely used and most people knew it as a good ting for getting rid of pesticides.

How DDT kill?

- it disrupts the work of cell and affects the plasma membrane

- plasma membrane separates a cell from the inside to its outside, this allows substances to enter and leave the cells —> made of lipid/fats

DDT is fat soluble so it dissolve into plasma membrane. In the same time, opens up the membrane causing the cell to leak.

Potassium ions and sodium ions slip through the membrane.

When the pesticides enters water, algae and bacteria take in the position. SO somehow when DT is sprayed into the water fish will eat it.

Smaller fish are very sensitive to DDT

The food chain are still not totally free of DDT

The pesticides breaks down very slowly in the environment. DDT is still legal in some countries, where it is used in large quantities. 

Complex System

This system is complex because there are more steps. Usually the maid will clean it up, but the maid was not available and more people were involved in the system. And cause a lot of injuries.

Command Terms

Define

Give the precise meaning of a word, phrase, concept or physical quantity.

Draw
Represent by means of a labelled, accurate diagram or graph, using a pencil. A ruler (straight edge) should be used for straight lines. Diagrams should be drawn to scale. Graphs should have points correctly plotted (if appropriate) and joined in a straight line orsmooth curve.

Label
Add labels to a diagram.

List
Give a sequence of brief answers with no explanation.

Measure
Obtain a value for a quantity.

State
Give a specific name, value or other brief answer  without explanation or calculation.

Annotate 
Add brief notes to a diagram or graph.

Apply
Use an idea, equation, principle, theory or law in relation to a given problem or issue.

Calculate
Obtain a numerical answer showing the relevant stages of working.

Describe
Give a detailed account.

Distinguish
Make clear the differences between two or more concepts or items.

Estimate
Obtain an approximate value.

Identify
Provide an answer from a number of possibilities.

Outline
Give a brief account or summary.

Analyse
Break down in order to bring out the essential elements or structure.

Comment
Give a judgment based on a given statement or result of a calculation.

Compare and contrast
Give an account of similarities and differences between two (or more) items or situations, referring to both (all) of them throughout.

Construct
Display information in a diagrammatic or logical form.

Deduce
Reach a conclusion from the information given.

Derive
Manipulate a mathematical relationship to give a new equation or relationship.

Design
Produce a plan, simulation or model.

Determine
Obtain the only possible answer.

Discuss
Offer a considered and balanced review that includes a range of arguments, factors or hypotheses. Opinions or conclusions should be presented clearly and supported by appropriate evidence.

Evaluate

Make an appraisal by weighing up the strengths and limitations.

Complicated System in school

Tee's group Early leaving System

1. Get the form from office 
2. Fill up the form
3. Get signature from class that we are gonna miss 
4. Get signature from homeroom teacher 
5. Wait for parents to come and pick up 
6. Get signature from parents 
7. Go home 

Mind's group Fire alarm System 

1. School is on fire 
2. Rings the alarm 
3. Students and teachers evacuate to the outside 
4. Teachers make sure that all the students are safe 
5. School stuffs inform parents to pick up their children 

Give's group Buying food system 

1. Go down the hallway 
2. Exchange the coupons 
3. Walk to cafeteria 
4. Find the seat get the spoons or forks 
5. Go buy a food and pay the girl in front 

Nat's Group What to do if find any insects in your food 

1. Take a picture 
2. Report it to the chief 
3. Mr.Ray will tell the staffs 
4. The kitchen will be cleaned 
5. Ingredients will be purchased again 
6. Ingredients will be restocked 
7. Enjoy new meal