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Educational resources by teachers for teachers.  Recursos educacionais por professores para professores.  
Curated by Luciana Viter
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Rescooped by Luciana Viter from Artículos CIENCIA-TECNOLOGIA
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Interstellar: una película pensada para ser científicamente precisa

Interstellar: una película pensada para ser científicamente precisa | Banco de Aulas | Scoop.it
Cuando vemos una película, sabemos si nos ha gustado o no, pero solemos quedarnos en la capa superficial de lo que nos cuenta. Por ejemplo, aunque hayas visto la peli 'Interstellar', tal vez no te hayas dado cuenta de que está pensada para ser científicamente precisa. Puedes comprobarlo en este vídeo.

Via Gumersindo Fernández
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Rescooped by Luciana Viter from Amazing Science
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A grain of sand harbors up to 100,000 microorganisms from thousands of species

A grain of sand harbors up to 100,000 microorganisms from thousands of species | Banco de Aulas | Scoop.it

Just imagine, you are sitting on a sunny beach, contentedly letting the warm sand trickle through your fingers. Millions of sand grains. What you probably can't imagine: at the same time, billions upon billions of bacteria are also trickling through your fingers. Between 10,000 and 100,000 microorganisms live on each single grain of sand, as revealed in a study by researchers from the Max Planck Institute for Marine Microbiology in Bremen. This means that an individual grain of sand can have twice as many residents as, say, the city of Fairbanks, Alaska!

 

It has long been known that sand is a densely populated and active habitat. Now David Probandt and his colleagues have described the microbial community on a single grain of sand using modern molecular methods. To do this, they used samples taken from the southern North Sea, near the island of Helgoland, off the German coast.

 

The bacteria do not colonize the sand grains uniformly. While exposed areas are practically uncolonized, the bacteria bustle in cracks and depressions. "They are well protected there," explains Probandt. "When water flows around the grains of sand and they are swirled around, rubbing against each other, the bacteria are safe within these depressions." These sites may also act as hiding grounds from predators, who comb the surface of the sand grains in search of food.

 

However, the diversity of the bacteria, and not just their numbers, is impressive. "We found thousands of different species of bacteria on each individual grain of sand," says Probandt. Some bacteria species and groups can be found on all investigated sand grains, others only here and there. "More than half of the inhabitants on all grains are the same. We assume that this core community on all sand grains displays a similar function," explains Probandt. "In principle, each grain has the same fundamental population and infrastructure." We can therefore really discover a great deal about the bacterial diversity of sand in general from investigating a single grain of sand.

 

Sand-dwelling bacteria play an important role in the marine ecosystem and global material cycles. Because these bacteria process, for example, carbon and nitrogen compounds from seawater and fluvial inflows, the sand acts as an enormous purifying filter. Much of what is flushed into the seabed by seawater doesn't come back out.

 

"Every grain of sand functions like a small bacterial pantry," explains Probandt. They deliver the necessary supplies to keep the carbon, nitrogen and sulphur cycles running. "Whatever the conditions may be that the bacterial community on a grain of sand is exposed to -- thanks to the great diversity of the core community there is always someone to process the substances from the surrounding water."


Via Dr. Stefan Gruenwald
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Rescooped by Luciana Viter from Recursos Online
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A Great Resource That Offers 400 Science and Math Simulations and Learning Activities for Students

A Great Resource That Offers 400 Science and Math Simulations and Learning Activities for Students | Banco de Aulas | Scoop.it
Free resource of educational web tools, 21st century skills, tips and tutorials on how teachers and students integrate technology into education

Via Maria Margarida Correia
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Lo que no sabías sobre la contaminación del aire

Lo que no sabías sobre la contaminación del aire | Banco de Aulas | Scoop.it
Sabemos que existen contaminantes dispersos en el aire que dañan nuestro ecosistema y nuestra salud. Pero lo que quizás no sabemos es que existen diferentes medidas que debemos de tomar para poder protegernos cuando la calidad del aire es mala.

Via Luis Vargas
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Rescooped by Luciana Viter from ECO-DIARIO-ALTERNATIVO
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El universo tiene diez veces más galaxias de las que se pensaba

El universo tiene diez veces más galaxias de las que se pensaba | Banco de Aulas | Scoop.it
Según los autores, la respuesta estaría en que la mayoría de estas galaxias son invisibles para el ojo humano, e incluso para los telescopios modernos, debido a una combinación de factores: desplazamiento al rojo de la luz, la naturaleza dinámica del universo y la absorción de la luz por el polvo y gas intergaláctico. Todos estos factores se combinan para garantizar que el cielo nocturno siga siendo, en su mayor parte, oscuro.

Via ECO-DIARIO-ALTERNATIVO
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Rescooped by Luciana Viter from Artículos CIENCIA-TECNOLOGIA
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Mapa interactivo para ver la Tierra desde el Espacio

Mapa interactivo para ver la Tierra desde el Espacio | Banco de Aulas | Scoop.it
Hoy comparto con vosotros un mapa interactivo con muchas fotografías de la Tierra desde el Espacio, son imágenes obtenidas por el astronauta Tim Peake durante los seis meses de su misión en la Estación Espacial Internacional.

Via Gumersindo Fernández
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Space Debris 1957 2015

Almost 20,000 pieces of space debris are currently orbiting the Earth. This visualisation, created by Dr Stuart Grey, lecturer at University College Londo
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A New Origin Story for Dogs

A New Origin Story for Dogs | Banco de Aulas | Scoop.it
Tens of thousands of years ago, before the internet, before the Industrial Revolution, before literature and mathematics, bronze and iron, before the advent of agriculture, early humans formed an unlikely partnership with another animal—the grey wolf. The fates of our two species became braided together. The wolves changed in body and temperament. Their skulls, teeth, and paws shrank. Their ears flopped. They gained a docile disposition, becoming both less frightening and less fearful. They learned to read the complex expressions that ripple across human faces. They turned into dogs.

Today, dogs are such familiar parts of our lives—our reputed best friends and subject of many a meme—that it’s easy to take them, and what they represent, for granted. Dogs were the first domesticated animals, and their barks heralded the Anthropocene. We raised puppies well before we raised kittens or chickens; before we herded cows, goats, pigs, and sheep; before we planted rice, wheat, barley, and corn; before we remade the world.

“Remove domestication from the human species, and there’s probably a couple of million of us on the planet, max,” says archaeologist and geneticist Greger Larson. “Instead, what do we have? Seven billion people, climate change, travel, innovation and everything. Domestication has influenced the entire earth. And dogs were the first.” For most of human history, “we’re not dissimilar to any other wild primate. We’re manipulating our environments, but not on a scale bigger than, say, a herd of African elephants. And then, we go into partnership with this group of wolves. They altered our relationship with the natural world.”

Via Wildcat2030
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Rescooped by Luciana Viter from IELTS, ESP, EAP and CALL
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The largest study of life forms ever has estimated that Earth is home to 1 TRILLION species

The largest study of life forms ever has estimated that Earth is home to 1 TRILLION species | Banco de Aulas | Scoop.it
There are more species on Earth than stars in our galaxy.

Via Dot MacKenzie
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Rescooped by Luciana Viter from IEDRO International Environmental Data Rescue Organization
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The Human Body Under the Microscope | DiscoverMagazine.com

The Human Body Under the Microscope | DiscoverMagazine.com | Banco de Aulas | Scoop.it

Via Dot MacKenzie
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Rescooped by Luciana Viter from Effective Education
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Who ya callin' bird brain? - Washington Post

Who ya callin' bird brain? - Washington Post | Banco de Aulas | Scoop.it
Crows may be among the most intelligent animals on Earth, rivaling chimps and other primates.

Via Mark E. Deschaine, PhD
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5 Excellent YouTube Channels for Science Videos

5 Excellent YouTube Channels for Science Videos | Banco de Aulas | Scoop.it

These channels feature a treasure trove of educational videos covering various scientific phenomena. The content is student friendly and you will definitely find things to incorporate in your classroom teaching.


Via Andrea Zeitz
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Arloon Anatomy: El Cuerpo Humano, una app para aprender anatomía - Educación 3.0

Arloon Anatomy: El Cuerpo Humano, una app para aprender anatomía - Educación 3.0 | Banco de Aulas | Scoop.it
Cómo es el cuerpo humano por dentro? Anatomy: El Cuerpo Humano lo muestra con todo detalle para que los estudiantes puedan aprender anatomía de forma divertida.

Via Ramon Aragon
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Rescooped by Luciana Viter from Technology in Business Today
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'Oumuamua Probably Isn't a Spaceship—But It Could Have Passengers

'Oumuamua Probably Isn't a Spaceship—But It Could Have Passengers | Banco de Aulas | Scoop.it
Observations suggest the interstellar asteroid is encased in a dry, carbon-rich crust that could have protected a water-ice core from being vaporized as it passed our sun.

Via TechinBiz
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Rescooped by Luciana Viter from Artículos CIENCIA-TECNOLOGIA
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3 Confusiones sobre la Expansión del Universo

El espacio ahí fuera crece en todas las direcciones, pero ¿crece a causa de una explosión? ¿y en dónde crece? Y si todas las galaxias se alejan, ¿por qué se dice que andrómeda va a chocar contra nosotros? Es hora de resolver estas confusiones.

Via Gumersindo Fernández
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Qué es la entropía y para qué sirve? | BricoGeek.com

Qué es la entropía y para qué sirve? | BricoGeek.com | Banco de Aulas | Scoop.it

Es un concepto crucial para la química y la física y se llama entropía. Ayuda a explicar por qué los procesos físicos van en una dirección y no en la otra, como por ejemplo por qué se derrite el hielo, por qué la leche se mezcla en el café, por qué el aire sale de un neumático perforado. Es entropía y es difícil hacerse una idea de cómo funciona y porqué. En el vídeo que os dejo a continuación, Jeff Phillips nos explica con sencillos ejemplos qué es la entropía.


Via Gumersindo Fernández
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Rescooped by Luciana Viter from Daily Magazine
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Researchers uncover the origin of atmospheric particles

Researchers uncover the origin of atmospheric particles | Banco de Aulas | Scoop.it
In a study led by the University of Leeds, scientists have solved one of the most challenging and long-standing problems in atmospheric science: to understand how particles are formed in the atmosphere.

Via THE OFFICIAL ANDREASCY
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How trees talk to each other

How trees talk to each other | Banco de Aulas | Scoop.it
"A forest is much more than what you see," says ecologist Suzanne Simard. Her 30 years of research in Canadian forests have led to an astounding discovery -- trees talk, often and over vast distances.
Via Alexis Brantes
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Ginger Jewell's curator insight, September 11, 2016 9:21 AM
This is so interesting.
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The Universe may be expanding much faster than we thought | Anthony Wood | GizMag.com

The Universe may be expanding much faster than we thought | Anthony Wood | GizMag.com | Banco de Aulas | Scoop.it

New measurements carried out using the Hubble Space Telescope suggest that the Universe may be expanding up to 9 percent faster than previously believed. The team behind the study, which is the most accurate of its kind ever undertaken, believe that the culprit for the unexpected acceleration could be one of the invisible phenomena thought to comprise roughly 95 percent of the Universe.

The new study observed the light signatures of around 2,400 Cepheid variable stars in 19 different galaxies, as well as those of 300 Type Ia supernova. Cepheids and Type Ia supernovae constitute part of the Cosmic Distance Ladder – an invaluable tool for astronomers attempting to map the vast distances between galaxies.


Click headline to read more and access hot links--


Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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Rescooped by Luciana Viter from Artículos CIENCIA-TECNOLOGIA
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¿Somos las personas solo química?

¿Somos las personas solo química? | Banco de Aulas | Scoop.it
[object Object]

Via Gumersindo Fernández
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Rescooped by Luciana Viter from tecnologiaeso
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Descubren el origen de todo el oro y la plata de la Tierra

Descubren el origen de todo el oro y la plata de la Tierra | Banco de Aulas | Scoop.it
Al principio de los tiempos, cuando el Universo acababa de nacer, todo, o casi todo, era hidrógeno.
Via José Javier Navas, jose_pro
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Putting the history of Earth into perspective

Putting the history of Earth into perspective | Banco de Aulas | Scoop.it
Pindex is a pinboard for learning. Collect and discover the best material. Love teaching. Love learning. LHC. Hyperloop. Atoms and molecules. Periodic table.

Via Barbara Goebel, Suvi Salo
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Barbara Goebel's curator insight, April 10, 2016 3:40 PM
I admit I'm a sucker for this type of thing...We are so small, so transient and fleeting, so destructive. Let's use this perspective to help ourselves become better stewards of our home.
Rescooped by Luciana Viter from iGeneration - 21st Century Education (Pedagogy & Digital Innovation)
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30 Ways To Teach Science Without a Textbook (Pinterest board)

30 Ways To Teach Science Without a Textbook (Pinterest board) | Banco de Aulas | Scoop.it
Looking for unique ways to teach science without a textbook? 1. Go to a children’s museum. 2. Go to a science museum. 3. Visit the zoo. | See more about Textbook and Science.

Via Tom D'Amico (@TDOttawa)
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Earth has entered sixth mass extinction, warn scientists

Earth has entered sixth mass extinction, warn scientists | Banco de Aulas | Scoop.it
Humans are responsible for so many species dying out that we are now in a sixth mass extinction, Stanford University has warned

Via THE OFFICIAL ANDREASCY
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THE OFFICIAL ANDREASCY's curator insight, June 19, 2015 5:06 PM

Animals now dying out at 100 times the normal rate, scientists say.

Marc Kneepkens's curator insight, June 19, 2015 6:47 PM

Is it too late? We better start looking really seriously at our options.

Rescooped by Luciana Viter from Programação e Tecnologia
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5 maneiras como os seres humanos poderiam destruir todo o Sistema Solar

5 maneiras como os seres humanos poderiam destruir todo o Sistema Solar | Banco de Aulas | Scoop.it
De desastres envolvendo aceleradores de partículas até jornadas intergalácticas mal planejadas, confira a seguir um pouco do potencial destrutivo da humanidade

Via PHPapartirdo0
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