Group Oral Presentations Evaluation

Congratulations on your group oral presentations!!!

See your evaluations below:

Section 1:
Group A: Panayiotis, A. George K., Pavlos N. - Grade 9.5/10

Group B: Alexandros Z, Christos P., George G. - Grade 8.5/10

Group C: Raphael H., Christiana K., Ioanna Ch., Georgia P. - 8.5/10

Group D: Stelios Th., Marios P. - 8.5/10

Group E: Maria K., Despoina O., Neophytos K., Pericles G. - 8.5/10

Section 2:
Group A: Markella Ch., Maria K., Michalis K. - 8.5/10

Group B: Yiannis S., Zacharias S., Aggelos M. - 9/10

Group C: Simos M., Pantelis S., Alexandros P. - 8.5/10

Group D: Alexandors S., Ifigeneia A., Alexandros S. - 8.5/10

A powerful presentation

Watch this video:


Rebranding Greece

Mistakes of the presentation

Mistakes of the presentation

• Bad choice of background colour
• Flat voice
• Didn't give the audience a chance to answer her questions
• She has her back turned to the audience
• She reads from the projector through out the presentation
• The letters are too small, hard to read or their colour is not good
• She looked bored
• She doesn't move around
• She has her hands crossed
• Spoke too fast
• No reference at the end
• No eye contact with the audience

Ioanna Charalambous
Yiannis Santi

Mistake of presentation

1. At times spoke too fast
2. No eye contact
3. Read completely off the slides
4. Back to audience
5. Audience not given the chance to answer questions
6. No references at the end

Zacharias Symeou
Aggelos Mosfiliotis

Mistakes in presentation

The presenter's mistakes in the presentation were:
- Bad colour for the background
- The font was difficult to read
- Small letters
- The presenter seemed bored
- Pictures irrelevant to the topic
- The presenter had no interaction with the audience

Alexandros Sarros
Michalis Charalambous

Delivering a bad presentation

1. Bad choice of background colour
2.No eye contact
3.She didnt allow the audience to make questions
3.Bad body language
4.Each slide had different writing font
5.The titles on each slide had different number styles
6.The pictures were irrelevant with the subject
7.The mouse click was very intence
8.On the last slide (conclusion) the words your assignment didnt appear like the rest of the text
9.She read from the slide without making her own comments
10.She didnt attract the audiences attention.



Pantelakis Sioukas
Simos Michael

The mistakes of the presentation

1)bad choice of background colour
2)small letters
3)she was boring
4)no communication with the audience
5)she wasn't prepared(technical problems)
6)not a good content
7)not answering questions


with Michalis Kakotas

Delivering a bad presentation - spot the mistakes

Delivering a bad presentation - spot the mistakes 

http://www.youtube.com/watch?v=ATfY8dvbuFg

Group Oral Presentations

Prepare a 10-minute group oral presentation on:
The causes and effects o a natural or a manmade disaster

Date: April 16, 2013

Time: 09:00-10:30, 10:30-12:00

Place: EHY

Work to be submitted: All groups should submit a copy of the PowerPoint slides used for the presentaion

Effects of the Icelandic Volcano

   The eruption of the Icelandic Volcano has caused many effects all around the world. The first effect was serious local flooding, also westerly winds have spread the volcano's ash plume across much of Europe and as a result, grounding thousands of airline flights, general distress and wonderment. Furthermore, the eruption sent sulfuric ash into the stratosphere , so it reflected enough light to cool global ground temperatures by about 1 degreee Fahrenheit for the next two years. This eruption caused scientists to suggest to intentionally distribute sulfur dioxide in the stratosphere as a solution to global warming.







Ioanna Charalambous
Aggelos Mosfiliotis

Effects of the Icelandic volcano eruption

According to Stephen J. Dubner at his article about icelandic volcano, inform us about impacts and future effects that can have. The first effect is that, the volcano has produced serious local flooding.Also westerly winds have spread the volcano's ash plume across Europe.This caused the grounding of thousands of airline flights and causing general distress and wonderment.Another effect was the cooling effect of volcanic eruptions because when it is sprayed so much sulfuric ash into the stratosphere that it reflected enough sunlight to cool global ground temperatures by about 1 degree Fahrenheit for the next tow years.Finally this Phenomenon embraced the scientists to research new methods for the cool down of the Planet Earth.In addition this Phenomenon can happen anytime and nobody can control it.

Zacharias Symeou

Giannis Santi

Eyjafjoll Eruption

 

Eyjafjoll is a volcano in southern Iceland, which has recently erupted and had a lot of effects in the earth. First of all it has produced serious local flooding. As a result of westerly winds have spread the volcano ash plume across Europe, which effect grounding thousands of airline flights and causing general distress and wonderment. Another effect that is possible to happen is the change of global ground temperature, as it happened in the eruption of Mount Pinatubo in the Philippines in 1991. In conclusion, volcano eruptions effects the nature and our everyday life.

Michalis Charalambous

Alexandros Pavlides

Volcano Eruption in Iceland

Recently, a volcano in Iceland known as Eyjafjoll has erupted and became quite famous because of its effects worldwide. More specifically, it caused serious local flooding. What is more, due to westerly winds, the volcano's ash plume has been spread across Europe, causing a general distress and the cancelling of flights all around the contintent. However, this eruption might prove useful in the future, as some scientists claim that sulfuric ash can be sent into the stratosphere and cool the planet, solving the Earth's overheating. Others believe that this eruption wasn't big enough for this but it was a precursor to a larger eruption that could probably affect the climate. This event may be the proof that good things can result from bad ones.


Michalis Kakotas
Alexandros Sarros

Effects of the volcano eruption

The Eyjafjoll volcano,located in southern Iceland, erupted on the 14th of April 2010. From this eruption Eyjafjoll has effected Europe in many ways.First effect was the fact that it produced serious local flooding throughout Iceland. Second effect which made international news was the spreading of the volcano's ash plume across much of Europe. This lead to thousands of airline flights cancelations. By the same reason this caused general distress and wonderment thoughout the world. Another possible effect was the cooling effect to the globe by the sulfuric ash which was distributed into the stratosphere. This reflected enough sunlight to cool global ground temperature by 1 degree Fahrenheit. The final possible effect is that this volcanic eruption is a precursor to another larger eruption which will cause bigger climate effects. By these effects we can see that our globe climate will suffer for many years to come.

Simos Michael
Pantelakis Sioukas

The causes and effects

According to Stephen J.Dubner a volcano in southern iceland  known as Eyjafjoll  erupted  and has serious effects. The first effect about the eruption it has produced serious local flloding.Another effect is that westerly winds spread the volcano's ash plume acrooss much of Europe.Because of that thousands of airline flights were canceled and causing general distress and wonderment.In that area of the volcano another effect  is that the temperature reduced by about 1 degree Fahrenheit.Volcano eruption is a natural phenomenon that can  happen any time.




Neophytos Katsiflis
Despoina Odysseos  

Effects of the Icelandic volcano eruption

The eruption of the Icelandic volcano known as Eyjafjoll affected not only the Iceland but also the whole world.The first effect were the serius floodings.Another one effect is the spread of the volcano's ash plume across europe.This caused the grounding of thousands of airline flights,general distress and wonderment.The ash that was released in the atmosphere was also full of substances like sulfur dioxide that may cause some climate changes in the future.Another one effect that is not so sure is that the volcano eruption cooled off the planet because at that point global land and ocean surface temperatures were very high.

Stelios Theodoulou
Marios Pavlou

Causes & Effects

In a paragraph of about 100 words, summarize the present and possible future effects of the recent volcano eruption in southern Iceland.  You may use information from the your handout, as well as other sources.

In every volcano eruption there are many effects, for example the volcano in southern Iceland known as Eyjafjoll. The first effect is that, the volcano has produced serious local flooding. Next, the volcano's ash grounded thousands of airline flights and causing general distress and wonderment. Also, it reflects enough sunlight to cool global ground temperatures by about 1 degree Fahrenheit. Furthermore, the National Oceanic and  Atmospheric Administration announced that saw the warmest combined global land and ocean surface temperatures on record. Finally, it might appear some effects in the future but there will be small. To sum up, volcanoes effects the temperature, natural phenomenons and our life.

 

Rafael Hasikos

Christiana Kaminaridou

 

 

 

 

Effects of the Erruption

    When the volcano in southern Iceland erupted has had serious effects. First it has produced serious local flooding and the winds have spread the volcano's ash plum over Europe. Also, thousands of airline flights have been canceled and caused distress and wonderment. Moreover, another effect of volcano's eruption is that the sulfuric ash gets into stratosphere reflected sunlight to cool global ground temperatures. Finally, this eruption was the precursor to another larger eruption. If a larger eruption happens then there will be some climate effects.

Maria Kyrkou
Periklis Georgiou

WILL THE ICELANDIC VOLCANO COOL OFF THE PLANET???

CAUSES AND EFFECTS

According to Stephen J. Dubner at his article about icelandic volcano, inform us about impacts and possible effects that can have. The fisrt effect is serious local flooding. Second, is the canceling of thousands of airline flights because of the westerly winds that have spread the volcano's ash plume and the general distress and wonderment. An effect that is possible to happen is change in climate. Similarly, when other volcanoes had erupted, there was a fall in temperature by about 1 degree Fahrenheit for the next two years. Volcano's explosion is a natural phenomenon which can happen anytime. Nobody can control it , but it would be nice people be prepared for this.




Maria Koulenti
Markela Christou

Icelandic Volcano Effects

 A volcano in southern Iceland known as Eyjafjoll has erupted on 14th of April in 2010. It has produced many serious local flooding. Also westerly winds have spread the volcano's ash plume across Europe. Another serious effect was the grounding of thousands of airline flights. In addition, it caused general distress and wonderment. Because of the sulfuric ash into the stratosphere cause enough sunlight to cool global ground temperatures by about 1 Fahrenheit degree for the next two years. This Phenomenon embraced the scientists to research new methods for the cool down of the Planet Earth.

Nikolaou Pavlos
Konstantinou Giorgos
Adamou Panagiotis

Effects of the eruption

The volcano Eyjafjoll that has recently erupted in Iceland has had many effects on the the whole europe. The local areas have experienced flooding, furthermore the ash that has spread all over europe's atmosphere caused problems with air travel, for example many people could not reach their destination because the planes could not fly safely with all the ash in the way. On top of that the ash that was released in the atmosphere was full of substances like sulfur dioxide that may cause some climate changes in the future.


Giorgos Georgiou
Christos Patsalides
Alexandros Zervas

The process of rainbow

THE PROCESS OF RAINBOW

First of all,  white light from the Sun has to hit the raindrops at a certain angle before a rainbow is possible. It is best if the sun is fairly low in the sky such as dawn and late afternoon. The angle is important as it effect the direct the light travels after it hits the raindrops and that determines whether or not we will see a rainbow. Then, it is possible to see through a glass window but, at the same time, see your own reflection. Water can do this too. When light from the sun hits a water droplet, some of the light is reflected. This light will obey the law of reflection. Next, the light that is not refracted crosses the air-water interface. When this happens it slows down because the water is more dense than the air. After that, white light is made up of a spectrum of colours, each with its own wavelength. Different wavelengths travel at different speeds and when they encounter a change to medium that is more dense or less dense, the speeds are efected by different amounts.   Moreover, at the rear of the raindrop, the light hits the water-to-air interface. A rainbow will only be seen if this happens, otherwise the light will continue out the other side of the raindrop. In addition,  just as the light changed speed as it entered the raindrop, its speed changes again as it leaves. Here, the light is moving from a more dense medium to a less dense medium. As it does so, it speeds up and its path bends. Finally, as the rays are refracted once again, the various wavelengths are effected to different extents. The overall result of this is increased separation of the component colours of white light.

Discussing Causes and Effects

 

In a paragraph of about 100 words, summarize the present and possible future effects of the recent volcano eruption in southern Iceland.  You may use information from the your handout, as well as other sources.

The process of lighting

Lighting is one of the most beautiful yet deadly phenomenons  of nature, however many people don’t know how it is formed. Lighting begins with the cycle of water. In the process of the water cycle, moisture can accumulate in the atmosphere. This accumulation is what we see as a cloud. As the process of evaporation and condensation continues, these droplets collide other moisture that is in the process of condensing as it rises. Also, the rising moisture may collide with ice or sleet that is in the process of falling to the earth or located in the lower portion of the cloud. The importance of these collisions is that electrons are knocked off of the rising moisture, thus creating a charge separation. When there is a charge separation in a cloud, there is also an electric field that is associated with the separation. While the rising moisture encounters colder temperatures in the upper cloud regions and begins to freeze, the frozen portion becomes negatively charged and the unfrozen droplets become positively charged. Eventually the negative charge of the base of the cloud gives the earth a positive charge. When the electrical potential reaches approximately ten thousand volts per centimeter, ionization occurs along a narrow path and the result is a flash of lightning.

DNA The Easy Way

1) Believe it or not, the process of completing a DNA test is not very difficult.
2)

• Human cells are collected
• The cells from a person's cheek are collected using a swab
• The cell sample are sent to a laboratory
• The DNAfrom the swab are extracted
• Many samples arecreated
• The samples are put in a gel mixture and subjected to electric current
• A DNA probe is attached to the sample
• The film of the DNA strand is developed
• More probes are used to test the strand

3) First of all, ultimately
4) DNA testing has become very popular, so it is now available on the Internet. Ordinary people can now order in-home DNA tests and get their results in just a few days.

DNA the easy way

1) the topic of the paragraph

the process of completing a DNA test

2)List the nine steps that make up the process of DNA testing.


  *   Human cell must be collected 
  *   Scientists extract the DNA from the swab
  *   They create many samples from it.
  *   Then the samples are put into a gel mixture
 *    And are subjected to an electric current.
 *    DNA probe can then be used, which attaches itself to the sample
 *    Analyse the probes location of DNA attachment and identify.
 *    Develop the film of this unique DNA strand.

3)3) What two transitional words or phrases in "DNA the Easy Way" can you find that have similar meanings to 'first' and 'finally'

First of all
 Ultimately,


4) Reread the last two sentences in the paragraph. What suprising information is given in these sentences. With what idea do they conclude the paragraph?
The two final sentences given the information tha DNA testing is now available on the Internet. We can order the DNA test from the internet and get the results in a few days

DNA The Easy Way

DNA The Easy Way

Topic : The process of the DNA test.

Steps : 

1. Human cells must be collected from a person's cheek using a swab.
2. Send this cell sample to a laboratory.
3. Scientists extract the DNA from the swab.
4. Scientists create many samples from the DNA.
5. The samples are put into a gel mixture.
6. The samples are subjected to an electric current.
7. A DNA probe can then be used, which attaches itself to the sample.
8. Analyze the probe's location.
9. Scientists develop the film of this unique DNA strand.

Transitional words: first of all,ultimately

Conclusion: Available test online,and at home.Results can be shown within 2 days.

Aslanidou ifigenia

Pavlidis Alexandros

1)  The process of completing a DNA test is not very difficult.


2)

• The cells are collected from a person's cheek.
•  The sample is sent to the laboratory
•  The dna is extracted
•  Many samples of the dna are created
•  The samples are put into a gel mixture
•  The samples are then subjected to an electric current
•  A probe is used, which attaches itself to the sample
•  Analyze the probe location.
•  Develop the film of this unique dna strand.

 

3)

• first = first of all
• finally = ultimately

4)  DNA testing it is now available on the Internet.The surprising information is given in these sentences is that you can do a DNA test at home and done in only a few days.



Zacharias Symeou
Giannis Santi

1) The process of DNA test.

2) a)Human cells must be collected.
 b)Send this cells sample to a laboratory
 c)Scientists extract the DNA from the swab
 d) create many samples from it.
 e)The samples are put into a gel mixture
 f)the samples are subjected to an electric current
 g) a DNA probe is used to attach itself to the sample
 h) analyze the probe's location,
 i) scientists develop the film of this unique DNA strand.

3) First of all ,Ultimately

4) DNA testing is now available on the Internet. Also, some people can now order in home DNA tests and get their results in just a few days.

with maria koulenti

DNA

1. The topic of this paragraph is the process of a DNA test.
2. 
a) human cells must be collected  from a person's cheek using a swab.
b) send this cell sample to a laboratory
c) scientists extract the DNA from the swab
d) create many samples from it
e) the samples are put into a gel mixture
f) and subjected to an electric current
g) A DNA probe is used which attaches itself to the sample.
h) analyze the probe's location
i) scientists develop the film of this unique DNA strand

3. First of all,Ultimately
4.The suprising information is that DNA testing is now available on the Internet and ordinary people can now order in-home DNA tests and get their results in just a few days.

ANSWERS DNA the EASY way

1)Topic : The process of completing a DNA test

• Human cells must be collected
• Send this cell sample to a laboratory
• Scientists extract DNA from the swab
• Samples are created
• Sample are put into a gel mixture
• Samples arre subjected to an electric current
• DNA probe is used to attach its self to the sample
• Unique DNA attachment is analyzed
• Scientists develop the film of the unique DNA strand.

3)First of all,ultimately
4)Dna testing is popular and is available on the internet.
The process is fast and easy.



Pantelakis Sioukas and Simos Michael

DNA the easy way Answers

Answers

1) The process of completing a DNA test.

2)  Human cells are collected.
     Cell sample is sent to laboratory
     Extract DNA from the swab.
     They create many samples from it.
     Then the samples are put into a gel mixture.
     The subjected to an electric current.
     A DNA probe is used to attach itself to the sample.
     Analyse the probes location of DNA attachment and identify.
     Develop the film of this unique DNA strand.

3)  First of all
     Ultimately

4)The conclusion gives us surprising information that DNA test is available on the Internet and ordinary people can do it.

DNA The Easy Way

1. The process of DNA testing.

2. a)collect human cells
    b)send this cell sample to a laboratory
    c)extract the DNA
    d)create many samples
    e)put samples into a gel mixture
    f)add electrical current
    g)attaches to the sample
    h)analyze the probe's location
    i)develop the film of this unique DNA strand

3. First of all and Ultimately.

4. DNA testing is now available on the Internet. Also, some people can now order in home DNA tests and get their results in just a few days.

  

DNA The Easy Way

DNA The Easy Way

Answers:

1) Believe it or not, the process of completing a DNA test is not very difficult.

2)    1.human cells must be collected

       2.send this cell sample to a laboratory

       3.scientists extract the DNA from the swab

       4.create many samples from it

       5.the samples are put into a gel mixture

       6.samples are subjected to an electric current

       7.a DNA probe attaches itself to the sample

       8. analyze the probe's location     

       9. develop the film of this unique DNA strand

3) First of all

    Ultimately

4) DNA testing has become very popular, so it is now available on the Internet. Ordinary people can now order in-home DNA tests and get their results in just a few days.

   The conclusion give us suprising information that ordinary people can now order in-home DNA tests and get their results in just a few days.

RAFAEL HASIKOS

CHRISTIANA KAMINARIDOU

1)  The process of completing a DNA test.

2) a) The cells can be collected from a person's cheek .
    b) The sample is sent to the  laboratory.
    c)  The DNA is extracted.
    d)    Many samples of the dna are created
   e)  The samples are put into gel mixture
   f)   The samples are then subjected to an electric current
  g) Attaches to the sample
  h) Analyze the probe location
 i)  develop the film of this unique dna strand.


3) First of all
    ultimately

4)  They you can do a dna test at home.


Marios Pavlou

Aggelos Mosfiliotis

DNA The Easy Way

 

Believe it or not, the process of completing a DNA test is not very difficult. First of all, human cells must be collected. The cells can be collected from a person's cheek using a swab. The next step is to send this cell sample to a laboratory, where scientists extract the DNA from the swab and create many samples from it. Then the samples are put into a gel mixture, and are subjected to an electric current. A DNA probe can then be used, which attaches itself to the sample. Each person produces a unique location of DNA attachment, and this is how the identification works. Ultimately, scientists develop the film of this unique DNA strand. This type of DNA test becomes more reliable as more probes are used to test the strand. DNA testing has become very popular, so it is now available on the Internet. Ordinary people can now order in-home DNA tests and get their results in just a few days.

 

Questions:

1) What is the topic of this paragraph?Believe it or not, the process of completing a DNA test is not very difficult. First of all, human cells must be collected

 

2) List the nine steps that make up the process of DNA testing.

1. Collection of Human Cells
2. Send sample to the lab
3. Extract te DNA
4. Create many samples
5. Put samples into gel mixture
6. Subjection to electrical current
7. Attach the probe to the sample
8. Analyze te probes location
9. Develop the film of the DNA

3) What two transitional words or phrases in "DNA the Easy Way" can you find that have similar meanings to 'first' and 'finally'?First of all,Ultimately

 

4) Reread the last two sentences in the paragraph. What suprising information is given in these sentences. With what idea do they conclude the paragraph?This test is available through the internet and you can order it from home,This test is reliable and very easy to do

 

1)Believe it or not, the process of completing a DNA test is not very difficult. First of all, human cells must be collected.

2)a) human cells must be collected.
b)send this cell sample to a laboratory
c)scientists extract the DNA from the swab
d)create many samples from it
e)the samples are put into a gel mixture
f)the samples subjected to an electric current
g)A DNA probe attaches itself to the sample.
h)analyse the probe's location
i)scientists develop the film of this unique DNA strand

3)first=first of all
   finaly=ultimately

4) DNA testing is now available on the Internet.
    They conclude with the information that people can now order in-home DNA tests and get their results in just a few days.

pavlos nikolaou
giorgos konstantinou

1) the process of completing a DNA test is not very difficult.

2)collecte cells from a person's cheek using a swab.

The next step is to send this cell sample to a laboratory

extract the DNA from the swab

create many samples from it

the samples are put into a gel mixture

subjected to an electric current

A DNA probe can then be used, which attaches itself to the sample

analayze probe location

scientists develop the film of this unique DNA strand

3)First of all, Ultimately

4)now available on the Internet, and ordinary people can now order in-home DNA tests and get their results in just a few days.

giorgos georgiou
christos patsalides

DNA-Neophytos-Despina

Questions:
1) What is the topic of this paragraph?
The process of a DNA test .2) List the nine steps that make up the process of DNA testing.
Human cells must be collected,
Send this cell sample to a laboratory,
Extract the DNA
Create many samples
The samples are put into a gel mixture
Subjected to an electric current
A DNA probe can then be used, which attaches itself to the sample.
Analize the probes location
Scientists develop the film of this unique DNA strand

3) What two transitional words or phrases in "DNA the Easy Way" can you find that have similar meanings to 'first' and 'finally'?
Ultimately,First of all4) Reread the last two sentences in the paragraph. What suprising information is given in these sentences. With what idea do they conclude the paragraph?
It is now available on the Internet and ordinary people can now order in-home DNA tests and get their results in just a few days.
This type of DNA test becomes more reliable as more probes are used to test the strand

by....
Neophytos Katsiflis :@
Despoina Odysseos :)
xxxxx

DNA Testing

1. Believe it or not, the process of completing a DNA test is not very difficult

2.1. The cells are collected from a person's cheek.
   2. The sample is sent to the laboratory
   3. The dna is extracted
   4. Many samples of the dna are created
   5. The samples are put into a gel mixture
   6. The samples are then subjected to an electric current
   7. A probe is used, which attaches itself to the sample
   8. Analyze the probe location.
   9. Develop the film of this unique dna strand.

3. First of all
    Ultimately

4. That you can do a dna test at home.
    That nowadays everyone can have a dna test done in only a few days.

DNA The Easy Way

DNA The Easy Way

1) DNA test

2)
     1) human cells must be collected
     2) send the cell sample to a laboratory
     3) scientists extract the DNA from the swab and
     4) the scientists create many samples from the DNA
     5) samples are put into a gel mixture
     6) samples are subjected to an electric current
     7) The DNA probe attaches itself to the sample
     8) analyze the probes location
     9) scientists develop the film of the unique DNA strand

3) first of all
    ultimately

4) The conclusion gives us suprising information

DNA The Easy Way

How To - Paternity DNA Testing

DNA The Easy Way

Believe it or not, the process of completing a DNA test is not very difficult. First of all, human cells must be collected. The cells can be collected from a person's cheek using a swab. The next step is to send this cell sample to a laboratory, where scientists extract the DNA from the swab and create many samples from it. Then the samples are put into a gel mixture, and are subjected to an electric current. A DNA probe can then be used, which attaches itself to the sample. Each person produces a unique location of DNA attachment, and this is how the identification works. Ultimately, scientists develop the film of this unique DNA strand. This type of DNA test becomes more reliable as more probes are used to test the strand. DNA testing has become very popular, so it is now available on the Internet. Ordinary people can now order in-home DNA tests and get their results in just a few days.

Questions:
1) What is the topic of this paragraph?

2) List the nine steps that make up the process of DNA testing.

3) What two transitional words or phrases in "DNA the Easy Way" can you find that have similar meanings to 'first' and 'finally'?

4) Reread the last two sentences in the paragraph. What suprising information is given in these sentences. With what idea do they conclude the paragraph?

How the microwave works

Microwaves

The m­icrowave oven uses microwaves to heat food. Microwaves are a type of wave that are sandwiched between radio waves and infrared radiation on the electromagnetic spectrum. In the case of microwave ovens, the commonly used wave frequency is roughly 2,450 megahertz (2.45 gigahertz).Waves in this frequency range have an interesting property: They're absorbed by water, fats and sugars. Once absorbed, they're converted directly into atomic motion -- heat. These waves boast another interesting, related property, too: They're not absorbed by most plastics, glass or ceramics. Metal reflects microwaves, which is why metal pans don't work well in a microwave oven. It's also why the devices have metal walls -- for reflection.

There are two main materials to make adhesives which are epoxy resin and urea formaldehyde. Epoxy resins are a class of reactive prepolymers and polymers which contain epoxide groups. Urea formaldehyde is a non-transparent thermosetting resin, made from urea and formaldehyde heated in the presence of a mild base. The first one has high strength when is reinforced. On the other hand, urea formaldehyde is stiff, hard, strong and brittle without any elaboration. Epoxy resin is a good chemical and also wear resistance material. In contrast, urea formaldehyde is heat-resistant and a good electrical insulator. These materials have a great variety of uses except adhesives. Epoxy has a wide range of applications including metal coatings and uses in electronics. More specifically it is used for the encapsulation of the electronic components. In the same way, urea formaldehyde is everywhere and used in many manufacturing processes due to its useful properties, such as electrical fittings. In addition, it is used in decorative laminates, textiles, paper and foundry sand molds. In my opinion these two materials are valuable in industry because they have a lot of advantages in making products.

How can you make 3D glasses with little cost

3D is the up-and-coming technology in watching television and movies, so it is useful to know how to make cheap glasses easily with things you have at home.First of all, you will need a plastic cd cover, a blue and a red permanent marker and optional glasses frame. To begin, mark two areas of the cd cover, so they can fit to the frame. Then cut those pieces and paint the one red and the other blue. After that, attach the red one at the left side and the blue one at the right side. Now you can see television like never before

How does a foot pump work

                                                                  How does a foot pump work


Foot pumps are manually operated pumps driven by foot via a handle or lever. They move air as you push your foot up and down. With this pump, you put your foot on the black lever at the top and pump your leg up and down, making the red cylinder move back and forth. A valve inside the cylinder lets air in (when you raise your leg), which is then pumped out through the black hose on the right (when you lower your leg). A gauge on the top of the pump shows the air pressure in the tire in Imperial units(bars and pounds per square inch or psi).

How Does A Camera Work?

  Camera  is one of the most popular inventions of the last centuries because it helps people keep memories alive on paper. Fistly,the light reflects off the object being photographed,then this light reflects off the object in all different directions and hits the lens from different angles. The lens focuses these rays of light to a point behind the focal point forming a real image so the film is placed at the point where the real image is projected to. The shutter temporarily moves from in front of the film and allows light to hit the film, then light hits the film causing chemical reactions which "expose" the film. Finally, the shutter closes and the film is advanced so an unexposed piece of film is ready for the next picture.

How To Make Leather Seats for a Car

Inventions make our life easier and more comfortable.  Cars are  important in our life an we use them  a lot, thats why we need to make our seats by leather to avoid back ache. First of all, you have to remove the current seats of your car. After removing the material, you have to open the side seams in order to have a large amount of material which you can use for your new leather seat. You have to cut the pattern of your old seat to form the leather covering. After cutting the leather in the required shape, you need to have a heavy-duty thread and sewing machine in order to sew the covering. In the end we put our leather covers on the seats in a right way.

HOW TO PURIFY WATER

HOW TO PURIFY WATER

When the water you're hoping to drink might be riddled with parasites or bacteria, you can't afford to skimon water purification.So,read the following instructions carefully and always be prepared to purify water yourself.First of all,clean the container in which you're going to hold or store the water, by using a dish soap and water. Then, filter water through a clean cloth,allow it to settle for at least 30 minutes and pour off the clear water for purifying. Next, speed up the clearing of water,adding a little aluminum sulfate. This causes impurities to coagulate, which are removed as the particulate settles to the bottom of the container.
When the water is cleared,boil it for 1 minute in order to be purified. The boiled water,could taste a little bit 'flat',and disinfected water can have a strong chlorine taste. So, if you want to avoid this,add a pinch of salt to each litre of water.Finally,once the water in a container has been purified, open and close the container carefully. Don't touch the inside or the rim with your fingers, or else the water could become contaminated.

 

 

Solar water heater

Solar water heater is an invention that produces heated water. Firstly energy is collected from uv light rays so the sunlight passes through the collector glass. Then the sunlight strikes on a metal that absorbs energy and converts the  sunlight into heat energy. After that pipes that have water are heated and produce steam where goes into the tank so heated water is produced.

PISTON

A piston is one of the main engine components,made of aluminum and various nickel-based alloys. Pistonis a part of engine which goes up and down between  the cylinder making straight - reciprocating motion. Firstly, it pushes the fuel to bring it into condition to burn and produce motive force that is transferred through the connecting rod to the crankshaft. Secondly, seals the combustion space of the crankcase by compression springs.Of course, when all this is done, the piston has to expel the exhaust gases.

How to tie a tie

   A tie is a long piece of cloth worn for decorative purposes around the neck, resting under the shirt collar and knotted at the throat. First, put the tie aroud your neck, then starting with the wide end of the tie on your right, extend it a foot below the narrow end. Crooss the wide end over the narrow and turn back underneath, so that you can bring it up and turn it down around the loop. Pass the wide end around the front from left to right, then up through the loop and down through the knot in the front. Finally, tighten the knot carefully and draw it up to the collar. Following these actions, you have a perfectly tied tie.

How an extinguisher works

Extinguisher is a device used to control a small fires in emergency situations and it was patented from Ambrose Godfrey. Extinguisher has a simple use. First we put out the safety pin from the top. Then we aim at the base of fire for a better result. When we done these steps we squeeze the handle to operate.When we finish the extinguisher must refill.

How does cloud computing work?

Cloud computing created for data safety and it is very easy to use. You have to make an account to get username and password. When you finish the registration an email will sent to you. Open the email and click on the link. You can start uploading files from the first second. You will have access on these files wherever you are, at anyplace in world and with any device that has internet access like android,smart tv,tablets etc.

How do zips work

The zip is an invention which we all use in our daily life.It is an easy and interesting process.First you must connect the two teeth strips with the latching mechanism. Then the user will pull the latching mechanism(slide) upwords so the teeth are push towards the hollows of each track. To open the zip the user should simply pull the slide downwords so the two sides of the track are separated. Zips keep most of our bags and jackets shut and this would be all but impossible without modern manufacturing technology.

How to Start a Car

First you open the door and sit on the driver's seat. Then wear your seat belt. You will need to take the keys of the car and put them into the ignition.  Twist the key to start the engine.Before you turn the key, you will want to know what to do with your feet. If the car has a manual transmission the car will have a clutch pedal. If the car has an automatic transmission the car won't have a clutch pedal so you have to press the brakes.

How does a wine opener work?

Wine openers is actually a tool that we use to open wines easily.A wing corkscrew, sometimes called a butterfly corkscrew, has two levers, one on each side of the corkscrew.The arms of the winged corkscrew must be down and the corkscrew thrusts from the bottom, then point the corkscrew at the center of the cork.Keep twisting until the arms corkscrew raise at the top.When they reach the top is ready to pull out the cork so pull down the arms of the winged corkscrew.Then remove the cork from the corkscrew by twisting it.Wine is ready to serve!
 

BIKE

This invention is to make life easier for people.The petals are connected to the chain and the chain is connected to the rear wheel of the bicycle.The child pushes with his foot petals bicycle, so in this way caused to move.

How elevators work

How an elevator works

The most popular elevator design is the roped elevator.  When the button is pushed the motor of the elevator is activated. Depends of what button is pushed the motor created motion to the selected direction. The motion through a strong rope often made by steel runs up over a pulley allowing the elevator car to be raised or lowered.  A weight in the opposite side of the pulley keeps the balance of the elevators weight.

PISTON

PISTON

A piston is one of the main engine components,made of aluminum and various nickel-based alloys, ensuring hardness and the strength to fulfill their mission. First, it sucks the air-fuel mixture.  Then, it helps compress the mixture and finally, it needs to withstand the sudden rise in temperature caused by the ignition. Of course, when all this is done, the piston has to expel the exhaust gases.

Hair gel

Hair gel is a liquid solid that modern people use to give shape to their hair. Firstly the man wets his hair so the gel can be applied easier afterwards. When the hair is successfully wet the man gets a bit of hair gel and  puts it on his hair and spreads on the area he wants to shape. Then the man gives the shape he wants to his hair. When he is done he dries his hair so it stays that way.

how to change a water bottle on a water cooler

There is a very easy way of  how to change a water bottle on a water cooler.First remove the empty water bottle and then wash your hands so to not left any dust in the new water bottle.Remove the cap from the new water bottle and place it near the water cooler.After lift the fresh water bottle ,using your legs and not your bag , with your strong hand and push it with your other hand.

coffee maker

Coffee makers are cooking appliances used top brew coffee.  First of all add a coffee filter in the filter basket and measure out the coffee grounds.  Second measure out the water, accordind to the amount of coffee grounds you used.  When you are ready plug in the coffee maker and turn it on.  Wait until the coffee is completely brewed before consuming.  The last step is immediately toss the paper coffee filter away!

How bicycles work

The bicycle is a means of transportation that has existed since the 19th century that uses physical force and converts it into movement. The cyclist applies force on the pedals so that the gear begins to rotate. When the gear that is connected to the pedals begins to rotate the movement is transfered to the gear connected to the wheel which also begins to rotate causing the bicycle to start moving forwards. As long as the cyclist applies force the movement will go on.

Describing how inventions work

Choose an interesting invention and explain step by step how it works. Add an image to illustrate this procedure.

My Home Town vs My College Town

My hometown and my college town have several similarities and differences. First, my hometown, Nicosia, is the capital of Cyprus and is a big town. It has a population of about 183,000 people. Located in the center of the country, Nicosia is surrounded by many acres of farmland which are devoted mainly to growing wheat and potatoes. Nicosia also contains a college campus, University of Cyprus College, which is famous for its Architectural and Economics program as well as for its annual Power of the Night Festival. As for my college town, Limassol, is smaller than my hometown, having a population of about 100,000 local residents, which swells to 113,000 people when students from nearby areas are attending the college’s classes in the center of the town. In contrast with Nicosia, Limassol lies in the southwest coast of the country which has the main dock for imports and exports of products in the country. However, Limassol is similar to Nicosia in that it also boasts a beautiful college campus, called Cyprus University of Technology. This college is well known for its Engineering and Technology department and Limassol is well known also for its yearly Carnival Festival.

Apple iPhone 5 vs. Samsung Galaxy S3

Apple iPhone 5 and Samsung Galaxy S3 are the two most successful phones of 2012 and are still the best mobiles in the world but there are in-depth comparison. iPhone 5 has a design more presentable and has the best built on the market today. Apple used a resistant glass for the front and rear of the phone and alouminium for the rest of the body, that makes iPhone 5 more durable, weighter and smaller that the Samsung Galaxy S3, which has slightly less of an obsession with being small and thin. Samsung Galaxy S3 has a plastic frame for the whole body and screen of the phone. However Samsung Galaxy S3 is cheaper than its opponent with a difference of 138 english pounds, where Samsung model's prize is £391 instead of Apple's model, which is £529. Beyond of these, the differences between the Galaxy S3 and iPhone 5 user interfaces are quite stark. Apple 's interface, iOS is simple, easy to use, sull of animations, is the most pleasant and enthralling way to learn and operate. In contrast of Samsung Galaxy S3 is trying really hard to make Android a more consistent and beautiful experience, but its attempts feel contrived and at times misguided. In conclusion both phones are really good and advanced technology however there’s no clear overall winner.