The Friends School, Hobart, Tasmania, Australia (http://www.friends.tas.edu.au/)

• Latitude: 42°54' South
• Longitude: 147°15' East
• See Data Worksheets for the Friends School, Hobart, Tasmania, Australia:
  • Data Worksheet 1: Australia_FriendsSchool_recordsht1.pdf
  • Data Worksheet 2: Australia_FriendsSchool_recordsht2.pdf

Ann Atwater Community School (AACS), Bahama, NC, USA

 Our school is called Ann Atwater Community School (AACS), and is located in Bahama, NC. Bahama is in Durham County which is in the northern central part of North Carolina. The river we are studying is the Little River which is south of our school. AACS is part of a community complex that owns the land along the river. Our latitude is 36 N and our longitude is 78 W. We live in the Eastern Standard Time zone.
AACS is a unique school because it has small classes, which allows closer student teacher relationships and more hands-on learning. Our classes all revolve around social studies. Our school has about 90 students with no more than 18 in each class. We share our building with a senior center, family resource center, preschool, and before- and after-school programs.
For the past nine weeks we have been going to the Little River two days a week for 3-4 hours each day. It takes about 30 minutes to walk the trail to the part of the river we studied. To collect our data, we used a digital pH meter, dissolved oxygen kit, nets and buckets, and tools to measure stream velocity. Instead of using waders, we just got in the water and got wet! For fun, we floated down the rapids and threw river algae at each other.
Our hypothesis is that the part of the Little River we tested will be clean compared to the other rivers, because it is located in the country far from most sources of human pollution.

Mountain View Middle School, Beaverton, OR, USA

We are the Mazama Team, part of the sixth grade class at Mountain View Middle School. Mountain View is located in Beaverton OR, a suburb of Portland, in the great Pacific Northwest (USA). Our latitude is 45°N, and our longitude is 122°W. Oregon is known for rain, but that is what makes everything green. Some of our main attractions are Mt. Hood and Crater Lake National Park. If you like the outdoors, we have skiing, hiking, biking, mountain climbing, and running.

We have a program at our school called MVP, which stands for Mountain View PRIDE (Personal Responsibility, Respect, Integrity, Determination, and Effort). If we are caught demonstrating PRIDE, we get rewarded. It’s a fun program.

Instead of picking one water source, our teacher, Mr. Halloran, is having us do our project on the Tualatin River Watershed. A watershed is all the land area that drains to a specific point. So we are testing not only the Tualatin River but also three streams that feed into the Tualatin River.

Our class came up with two hypotheses:
• If water quality is related to population, then decreasing the population will have a positive impact on the water quality.
• If the number of organisms is related to temperature, then increasing the temperature will increase the number of organisms.

We are anxious to see what everybody comes up with for water quality.

We decided to study the entire Tualatin River Watershed rather than just the Tualatin River. The watershed is 712 square miles. It begins in the Coast Range and goes to the Willamette River. It is located in the northwest part of Oregon. (latitude → 45°N; longitude → 122°W)

Let us share a little of the history of the Tualatin Basin. The Kalapuya tribe settled here over 6,000 years ago. European settlers came to the area in the early 1800’s to trap abundant beaver. (In case you didn’t know, Oregon is known as the Beaver State.) Prior to the railroad, the Tualatin River was a major transportation network.

As industry continued to grow in the area, pollution problems got worse. By the mid-1960’s, the Tualatin River was considered the most polluted river in the state! Concerned groups decided to turn that situation around. Today you can go canoeing on the river, and just play around in it.

J.L. Schneller Institute, Khirbet Kanafar, West Bekaa, Lebanon (www.jlss.org)

1. Do you think your water is of good, or poor quality? Why?
Litani river, West Bekaa. This river flows to the Mediterranean Sea., Aammiq marsh, Aammiq, West Bekaa. Filled with water from the mountains. See for more info: http://en.arocha.org/lebanon.
o I think it is bad in Lebanon because we have a lot of garbage and pollution (sewage) beside the seas and the rivers. In Lebanon are no laws
o Aammiq marsh: good because animals love it. It is more natural there and no pollution.
o Not good because in summer the water dries to a degree that there will no more water.
o The Litani river is polluted so there is not a lot of fish living there. At the spring of the river people swim and fish in the river.
o Only poor people swim in the river.
o One boy was swimming in the water and then died.
o Aammiq: fishing, drinking water for cattle and as a water resource for irrigation of the nearby farmland.
o Litani: fishing (at the spring:drinking) and for generating electricity.
o In the past one used the river for getting drinking water and washing clothes and dishes

2. Do you think the water quality will be better in some areas of the world or worse? Why?
In developed countries the water will be clean because they take care of it and keep it clean. In other countries they will purify the water and they have laws so that the water will not get polluted. They get more rain in other countries.

3. Are the organisms found in the water the same all over the world? Why or why not?
No, they are different because there is difference in salinity, pollution and water temperature. In some places there will be more pollution e.g by factories so less organisms. Organisms need different mediums and temperature and many other conditions.
 

Colegio Nº29 Comandante Luis Piedra Buena, San Francisco del Monte de Oro, San Luis, Argentina

Nombre de la Institucion:Colegio Nº29 Comandante Luis Piedra Buena
Grado Nivel: Polimodal.
Ciudad:San Francisco del Monte de Oro.
Provincia o Estado:San Luis
Pais:Argentina
Latitud:32º36´Sur Longitud:66º07´Oeste
Hipotesis:La fuente de agua dulce de nuestra localidad de 3500 Hab es el rio San Francisco,es un rio de sierras cuya cuenca va de sur a norte y de este a oeste.Su caudal resulta de las precipitaciones ocurridas en las sierras durante la epoca de verano y de vertientes.
Por lo que creemos que es de buena calidad y con seguridad,mejor que en otras partes del mundo.
La calidad del agua como los microorganismos que en ella se desarrollan varian de acuerdo al grado de contaminacion de la misma,provocado fundamentalmente por el desequilibrio que produce el hombre en el ambiente,por lo que sostenemos, es distinta que en otras
areas del mundo.
Nuestra cuenca no recibe desechos industriales ni de explotacion minera.Solo recibe productos de la actividad agricola ganadera.
Yolanda Gastal Docente de 2º1º-Raul Montovani Docente de 2º1º
Alumnos(16)2º1º.

CENTRO ESCOLAR RODRIGO J LEIVA, METAPÁN, SANTA ANA, EL SALVADOR

SOMOS ALUMNOS DEL NOVENO GRADO DEL CENTRO ESCOLAR RODRIGO J LEIVA DE LA CIUDAD DE METAPÁN, DEPARTAMENTO DE SANTA ANA, EL SALVADOR. LA CUAL ESTA UBICADA A UNA LATITUD 14º 20’N, CON UNA LONGITUD DE 89º27’O.
EL ESTUDIO DEL AGUA FUE REALIZADA EN LA LAGUNITA DE METAPÁN Y NUESTRA HIPOTESIS ES “LA LAGUINTA ESTA MUY CONTAMIDAD, YA QUE SE ENCUENTRAN ANIMALES MUERTOS Y TIENE UN MAL OLOR, ADEMÁS DE QUE LOS SERES HUMANOS QUE VIVEN CERCA SE DEDICAN A BAÑARSE, LAVAR ROPA Y BOMBAS CON VENENOS QUE UTILIZAN PARA EL CULTIVO DE GRANOS BASICOS”
EN EL ESTUDIO DEL AGUA ESTUVIMOS TRABAJANDO CON LA ASOCIACIÓN NACIONAL DE ACUEDUCTOS Y ADCANTARILLADOS (ANDA), QUIENES NOS HICIERON LOS ESTUDIOS MICROBIOLOGICOS Y FISICO QUIMICO DEL AGUA, LUEGO NOSOTROS OBTUVIMOS LOS RESULTADOS REALES CON RESPECTO A LA HIPOTESIS.
LA CONCLUSION A LA QUE SE LLEGO ES QUE SI HAY CONTAMINACIÓN, PERO ESTA NO ES LA RESPONSABLE DE LA MUERTE DE LOS PECES, ANGILAS Y OTROS ANIMALES ENCONTRADOS MUERTOS, YA QUE SI FUERA ASÍ NO EXISTIERA ACTIVIDAD DE PESCA EN LA ZONA. POR LO TANTO DEBE SER UN MOTIVO DIFERENTE, AUNQUE LA CONTAMINACION ES GRANDE YA QUE SE ENCONTRO HASTA ESCHERICHIA COLI (ESES FECALES)

Institución Educativa Nº 6039 “Fernando Carbajal Segura”, Lima, Peru

Somos estudiantes de la Institución Educativa Nº 6039 “Fernando Carbajal Segura” del 4º Año “D”, Turno Tarde, del Nivel Secundaria, Distrito de Ate Vitarte, Lima Perú.
Nosotros estamos ubicados en:
Latitud 12º 02’ 36’’ S
Longitud 77º 01’ 42’’ O

Este Proyecto ¡H2O Viva! lo estamos desarrollando en el Area de Ciencia, Tecnología y Ambiente.

Nuestras hipótesis son:



- El agua del Río Rímac es de mala calidad por que las fábricas y los habitantes depositan sus desechos a lo largo del cauce del río.

- El agua en otras partes del mundo es mejor por que la población lo cuida mejor.

- Los organismos son diferentes, por que cada región tienen sus propios organismos.

Nuestro uniforme escolar ha cambiado desde el año pasado ahora llevamos chompa azul marino con rayas amillas, camisa o blusa blanca y pantalón o falda azul marino. Nuestros deportes favoritos son el fútbol y el voley.
Durante el año desarrollamos diferentes actividades: Olimpiadas Escolares, Feria de Ciencia y Tecnología, Celebración de nuestra Independencia que es el 28 de Julio de cada año, etc.
Celebraciones especiales: Día de la Madre, Día del Padre, Día del Maestro, Aniversario de nuestro Colegio, etc.

El río Rímac es uno de los principales que provee agua a la población de Lima y por ello su estudio es de vital importancia para nosotros.
La cuenca del río Rímac se encuentra localizada entre los paralelos 11º 25' y 12º 10', de latitud sur y los meridianos 76º 00' y 77º 00', de longitud oeste, cubriendo gran parte de la costa central del departamento de Lima. En su ámbito, se ubican poblaciones importantes como Vitarte, Chaclacayo, Chosica, Santa Eulalia, Surco, Matucana, San Mateo, Chicla y por supuesto Lima, la capital de la República, y en la subcuenca del río Santa Eulalia, se localizan las poblaciones de San Pedro de Casta, San Lorenzo de Huachupampa, San Juan de Iris, Laraos y Huanza.
 

Nosotros somos estudiantes del Colegio Prov. N°3 Manuel Belgrano , de La Toma(San Luis) cabecera del Dpto. Coronel Pringles, República Argentina.
Somos alumnos del 2° Año "A",del Polimodal.
El proyecto H2O VIVA lo abordamos desde la asignatura "Ecología de Ambientes Urbanos y Rural", y de manera interdisciplinaria con Física , Química, Matemática, Informática , Biologia.

Fórmulamos la siguiente Hipótesís:

- Consideramos que la fuente de agua del Río del Rosario, que provee del vital elemento, a nuestra comunidad, no es de buena calidad ,dado que en distintas épocas del año se ha podido obserbar que la misma posee olor, color y sabor, además de la aparición de enfermedades como diarrea, hepátitis, etc, por el consumo del agua.
- La calidad del agua del Río del Rosario, es mejor que en otras partes del mundo, dado que proviene de vertientes procedentes del Cerro del Rosario.
- Los organismos que se encuentran en las aguas del Rio del Rosario ,son diferentes en todas partes del mundo , porque depende de donde provengan será los organismos que en ella habiten

Nuestra Localidad está ubicada a 80 Km de San Luis Cápital, y en el centro oeste del país,Es una ciudad pequeña,su principal ecónomia regional es la mineria ( o lo era),La mayor explotación es la del mármol ónix , único en el mundo, el cuarzo y el feldespato.
El rio se encuentra a 4 Km del pueblo , en el paraje denominado "La Toma Vieja ", donde se encuentra , el antiguo edificio de la Estancia La Toma llamado comunmente "El Castillo".
Sobre el lecho del rio se ha edificado un escenario , y gradas , y alli se lleva a cabo todos los Enero, el Festival Del Mármol Ónix.

ESCUELA CRISTIANA EVANGELICA DE SAN LUIS
PROVINCIA DE SAN LUIS- ARGENTINA
LUGAR DE ESTUDIO RIO SAN LUIS EX RIO SECO

We are the Christian School Evangelica Of San Luis pertaining to the republica of Argentina, is a province of around 500,000 inhabitants in all its territory with a surface of 76,000 km2, but in comparison with other provinces there is minor amount of population. This located in the center of pais, with a dry in summer varying to dry tempering and very cold warm climate in winter this to about 500 meters at level of the sea with mountain ranges that do not pass the 2,000 meters, last this being made know this place, because before it was a crossing site. as far as intitucion student within very little turns 13 years and is the unica denominational school Christian evangelica of the province with around 150 students in a unico turn takes. to the being a new school the laboratory resources are not those that deberia to have one intitucion private, but we have begun with collecting bottoms to obtain the laboratory and all the necessary resources for him, we confessed the evangelica Christian religion and we did not discriminate students with another religion or beliefs. If we establish the moral norms, and like additional matter this Christian education, as far as the other curricular spaces they are the demanded ones by the ministry of education of the nation. We hoped to be able to complete this work because in this date and the moment which we entered, hasido a little takes, we will try to count on the objectives... the educational one ordered is Jessica Miranda professor of natural sciences.

HIPÓTESIS

PROYECTO H2O VIVA!!!

LUGAR DE ESTUDIO RIO SAN LUIS EX RIO SECO

Nombre del río: Río San Luis Ciudad: San Luis – Capital
Latitud: 33º sur Longitud: 66º oeste Altitud: 740 m sobre nivel del mar
Dirección del viento: NO Hora: 10:19 am
Tiempo actual: claro
Condiciones climáticas recientes: días con sol y muy seco. No llueve hace un mes. La temperatura oscila entre los 28º esperándose un a máxima de 30º . para el fin de semana se esperan lluvias y un descenso brusco de la temperatura.
Condiciones de la superficie: calma
Descripción del área adyacente: desarrollo de viviendas a no mas de 300 metros
Condición del río: parece estar contaminado con desechos de botellas plásticas, latas, basura en general. No se ven peces ya que la altura de este río no pasa los 300 mm. Pero si se ven plantas semiacuaticas, y musgos alrededor
Color y olor del agua: el color es medio lodosa y no tiene olor.
No se observa vida silvestre pero es probable que si haya algunas especies (sapos, víboras, insectos, gusanos, caballos, perros, cerdos, etc.)

AL VER A SIMPLE VISTA ESTE RIO NOS HEMOS DADO CUENTA QUE, HAY BASTANTE CONTAMINACIÓN (DESECHOS DE BASURA) POR LO TANTO NOS PARECE QUE EL AGUA ES DE MALA CALIDAD E INSALUBRE POR LO ESCRITO ANTERIORMENTE.
EN OTRAS PARTES DEL MUNDO DECIMOS QUE LA CALIDAD DEL AGUA ES UN POCO MEJOR QUE LA NUESTRA, POR QUE CREEMOS QUE ALLI SE CUIDA O SE EVITA LA CONTAMINACIÓN AMBIENTAL.
Y EN CUANTO A LOS ORGANISMOS VIVIENTES SON DIFERENTES EN CADA LUGAR PORQUE EL AGUA TIENE DIFERENTES CARACTERÍSTICAS (FÍSICAS, QUÍMICAS, DE MEDIO AMBIENTE, ETC.) Y ESO PROVOCA QUE ALGUNAS ESPECIES ACUATICAS PUEDAN VIVIR ALLI.

Nombre del río: Río San Luis Ciudad: San Luis – Capital
Latitud: 33º sur Longitud: 66º oeste Altitud: 740 m sobre nivel del mar
Dirección del viento: NO Hora: 10:19 am
Tiempo actual: claro
Condiciones climáticas recientes: días con sol y muy seco. No llueve hace un mes. La temperatura oscila entre los 28º esperándose un a máxima de 30º . para el fin de semana se esperan lluvias y un descenso brusco de la temperatura.
Condiciones de la superficie: calma
Descripción del área adyacente: desarrollo de viviendas a no mas de 300 metros
Condición del río: parece estar contaminado con desechos de botellas plásticas, latas, basura en general. No se ven peces ya que la altura de este río no pasa los 300 mm. Pero si se ven plantas semiacuaticas, y musgos alrededor
Color y olor del agua: el color es medio lodosa y no tiene olor.
No se observa vida silvestre pero es probable que si haya algunas especies (sapos, víboras, insectos, gusanos, caballos, perros, cerdos, etc.)
AL VER A SIMPLE VISTA ESTE RIO NOS HEMOS DADO CUENTA QUE, HAY BASTANTE CONTAMINACIÓN (DESECHOS DE BASURA) POR LO TANTO NOS PARECE QUE EL AGUA ES DE MALA CALIDAD E INSALUBRE POR LO ESCRITO ANTERIORMENTE.
EN OTRAS PARTES DEL MUNDO DECIMOS QUE LA CALIDAD DEL AGUA ES UN POCO MEJOR QUE LA NUESTRA, POR QUE CREEMOS QUE ALLI SE CUIDA O SE EVITA LA CONTAMINACIÓN AMBIENTAL.
Y EN CUANTO A LOS ORGANISMOS VIVIENTES SON DIFERENTES EN CADA LUGAR PORQUE EL AGUA TIENE DIFERENTES CARACTERÍSTICAS (FÍSICAS, QUÍMICAS, DE MEDIO AMBIENTE, ETC.) Y ESO PROVOCA QUE ALGUNAS ESPECIES ACUATICAS PUEDAN VIVIR ALLI.

ESCUELA CRISTIANA EVANGELICA DE SAN LUIS
PROVINCIA DE SAN LUIS- ARGENTINA

CONCLUSION FINAL

Analizando el agua, y de acuerdo a su Ph (7,9), esto nos demuestra que es buena calidad, por su temperatura, nos parece algo elevada, y por los macroinvertebrado hay algo de contaminación (basura), pero este agua es la que utilizan para el riego en las zonas cercas de horticultura.. por lo tanto es de buena calidad, a comparación de otros lugares donde las fuentes de agua dulce se convierten en los desaguaderos de muchas fábricas.
 

Montessori in Redlands letter of introduction, California, USA

Montessori in Redlands is in southern California. Our school is on 12 acres of land, which includes four buildings, three playgrounds, a basketball court, and a beautiful citrus grove. We have the Morrey arroyo that cuts right through our and divides into two different sides and just recently put in a bridge for easier access to the other sides. Our latitude is 34.0521 degrees north and our longitude is 117.2087 degrees west.

Our school is a private school with 307 students divided into 13 classrooms, some containing many young students. We have a very good environment for students to work in. Our schools ages are based on the Child's development but the placing of children are usually in these categories, 18-30 months in the toddler environment, 2 ½ -6 years of age in the primary environment, 6-12 years of age in the elementary environment, and 12 and up in the middle school environment.

We think that our water quality in the Morrey arroyo is of poor quality because of our citrus grove.

Cultural and Historical Aspects

We tested water from the Morey arroyo, which is part of the Santa Ana River Shed in the southwestern part a San Bernardino County. The San Andreas Fault runs through the watershed. The climate in this area is considered Mediterranean which is hot, dry summers and cool, wet winters. We get most of our rainfall November through March. Because this is a fairly arid region there is little perennial surface water in the watershed. Surface water starts in the upper regions of the San Bernardino Mountains and consists mainly of snowmelt. At this point water quality is fairly good, but as it flows down through the watershed the quality decreases.
The Santa Ana watershed is home to one of the fastest growing population areas in California. According to the 2000 Census, 4.8 million people live within the watershed and is projected to grow to 10 million by the year 2050. There are numerous demands on the watershed. Use of the watershed dates back to at least 10,000 years ago. Native Americans used the Santa Ana River as a source of food and water, but did not practice agriculture or irrigation. European settlers, primarily Spanish, brought irrigation practices to the watershed. By the 1800s much of the area was converted to citrus groves and diversions from the Santa Ana River were commonplace. A growing economy including tourism, aircraft, military, and entertainment industries is driving current population growth. The area is still rich in agriculture with pockets of citrus, dairy, and other agriculture activities that place a high demand on the watershed (Santa Ana Watershed Project Authority, 2005).

Hello again from Cavendish
HIstory of the Black River
Colonial times
Majority of settelers lived away from the river because they feared floods. Most people lived on 20 mile stream road.
They used the river for grist mills,
Later they used the river for saw mills.
The river had many covered bridges, it was covered so the rain and snow wouldn't rot the bridges.
Captain Cofine stayed ater the Revolutionary war.

People then began to move closer to the river.
The river turned the water wheelsof the mills

There were many woolen mills built along the river in the 1800's to the early 1900.

They dumped their dyes into the water and every day the water was a different color, hence the name "The Black River"

One of the mills in Cavendish was the second largest in Vermont. In 1870 many of the mills burnt down.

Gaye brothers then built a large mill. This mill is now Mack Molding.

The pelton water wheel was used for raing sheep.

The Friends School, Tasmania, Australia

Our school is a Quaker school, located in Hobart, Tasmania, Australia. It is the only Quaker school in the southern hemisphere. It has a school population of about 1200 with students from kindergarten (age 4) to year 12. The school is on two sites with years 7-10 on one and K-6 combined with 11 & 12 on the other. Our class is called 7 Mott, named after Lucretia Mott, a famous American Quaker. There are 23 students in our class, 12 boys and 11 girls. Most of us are already 13 or will be 13 before the end of our academic year which is in December. We are at the end of year 7, which is the first year of our high school. About half of our class have been at this school since Kindergarten whereas the rest have come from other suburban primary schools. Friends is a fee paying private school which has been in existence for 118 years. We would encourage you to look at our website, www.friends.tas.edu.au, which has photographs and more details about our school.

The stream we tested is known as the Hobart Rivulet which runs from the top of Mt Wellington down to the Derwent Estuary through the centre of the city of Hobart. Our hypothesis was that the water would be quite good as we were testing it initially very close to its source and that it might deteriorate as the rivulet got closer to the city. The length of the rivulet is only about 8 km from the source to the estuary. We hypothesised that it would be able to maintain a reasonable quality of environment provided the surrounding areas did not contribute too much pollution. Our testing was delayed as we had a week or more of very heavy rain and the Rivulet was running very freely. We also hypothesised that this factor might have removed some of the micro-organisms from the watercourse.

Historical background:

The Hobart Rivulet was a meeting ground for our aboriginal population for thousands of years before white settlement. It was described by David Collins in 1804 as “the run which supplies us with clear wholesome water, having its source in an adjoining Mountain”. On the recommendation of Collins, it was the primary reason why the site for the city of Hobart was decided upon.
In the early history of the colony, the waterway became even more essential to the developing community. As well as being a source of fresh water, it was also a source of power with breweries, flour mills, distilleries, a tannery and one timber mill all being developed along its banks. By 1825, only 21 years after white settlement, one newspaper concluded that the Rivulet was “the vilest and worst ditch with which any inhabited place was ever annoyed”. It very quickly became a source of disease in the settlement as the government allowed it to be used as a sewer. The colony developed with the richer citizens choosing to purchase land upstream where the water was reasonably pure to drink and the poorer people living at the bottom of the rivulet were forced to drink from what was essentially a sewer.
During the twentieth century, subsequent councils have endeavoured to clean up the Rivulet and its water quality has improved. Serious pollution is prevented by city by-laws but there is still some contamination, especially in the more built up areas. The last 1.5 kilometres of the rivulet now runs through a series of brick and concrete tunnels under the city.

Site description:
On Monday, October 31, our class went to Strickland Falls where the Rivulet runs over a series of rocks very close to its source. The day was sunny with almost no wind and the Rivulet was running fairly fast although not close to flood conditons as there had been no heavy rain during the previous few days. This site has signs of man-made structures including some pipe work left from an earlier water supply pipe-line used to supply the city with water. There was a picnic table available at the site showing that it was used for recreational purposes. The sides of the Rivulet upstream of the picnic area were steep and the vegetation on either side was fairly much in its natural state. The Rivulet ran into a large culvert which took it under the road south of the picnic site.

The second site was at a picnic ground called Cascade Gardens, named such because the rivulet runs through a series of cascades (small waterfalls) as it enters this site. The water was running at a much slower pace and the banks were wider with natural vegetation on the norhern side with grass and introduced trees forming the picnic grounds on the southern side. The distance between the two sites was about 1 km and there was a decrease in altitude between the two sites. The rivulet had run through some pristine land with little or no human impact for about half of this distance and then ran through urban development including running under the Cascade brewery just prior to the site. The Cascade brewery used to draw its water from the Rivulet in the 19th century and was powered by a large water wheel but currently does not. The water for our famous Cascade beer and fruit juices still comes from mountain streams but through a council organised water scheme.

Cavendish Town Elementary School, Proctorsville, VT, USA

Hello from Cavendish Town Elementary School in Proctorsville VT. Proctorsville is in Cavendish VT. We are at Lat/Lon: 43.4° N 72.6° W. We have attached some maps and an aereal view of the river in our town. Our initial observation took place at the end of September. WE walked down to the bridge which is 3 blocks from our school. Since the river is a large part of the community many of the students were familiar with the river.

On the day of our initial observation the river was low. Students were dismayed by the trash they could see on the bottom of the river but few remarked on the fact that they could see the bottom of the river.

Hypothesis:
One half of the class believes that the quality of the water is poor because there are factories and houses nearby the water. The factories release pollutants in the water and trash is thrown in the river too. Fish guts and fishing gear also gets dumped into the river. The train goes over the river and dumps silt, rust, iron and maganese into the river.

The second group states that the river is better in some place than in others. They feel that it is more clean in one place than in another place.

The class believes that the quality of rivers vary from place to place. A discussion ensued about septic issues.

Students also believed that macro-invertebrates varied from place to place. One factor that was noted in several of their scientist notebooks was that temperature difference would be a strong factor.

We will post history separate.

Attached are the maps I promised last time. I will also provide a rough translation in Spanish.

• CTES_Map-Topo.pdf

Cavendish continuó: Hipótesis: Una mitad de la clase cree que la calidad del agua es pobre porque hay fábricas y casas cerca el agua. Las fábricas release/versión los agentes contaminadores en el agua y la basura se lanza en el río también. La tripa de los pescados y el engranaje de pesca también consigue vaciados en el río. El tren pasa el río y los vaciados enarenan, aherrumbran, hierro y maganese en el río.

El segundo grupo indica que el río es mejor en un cierto lugar que en otros. Se sienten que está más limpio en un lugar que en otro lugar.

La clase cree que la calidad de los ríos varía de lugar al lugar. Una discusión sobrevino sobre ediciones sépticas.

Los estudiantes también creyeron que los macro-invertebrados variaron de lugar al lugar. Un factor que fue observado en varios de sus cuadernos del científico era que la diferencia de la temperatura sería un factor fuerte.

Fijaremos la historia separada.

Se asocian las correspondencias que prometí la vez última.

Escuela N° 69 "Olga Ester Sarden", Villa Mercedes, San Luis, Argentina

Hola..
Me llamo Jorge Alberto Briña, trabajo en la Escuela N° 69 "Olga Ester Sarden", de la ciudad de Villa Mercedes provincia de San Luis, República Argentina. Con mi grupo de alumnos participamos del poryecto para evaluar el agua que bebemos.
Decidimos tomar muestras del río que provee de agua a la ciudad, una muestra antes de la toma de agua para potabilizar, otra muestra luego de que el río pasa por las empresas y una muestra tomada en la escuela que ya está potabilizada.
Esperamos obtener buenos resultados.