Renewable Energy

This quick stop motion film asks & answers the question what makes an energy source renewable or nonrenewable.

http://www.nrel.gov/docs/gen/fy01/30927.pdf

EXPERIMENTO DE MILLER, BIOLOGÍA MOLECULAR (EA)

MINERALS

http://www.d.umn.edu/~pmorton/geol2300/powerpoint/color/sld001.htm

Con ayuda de estas claves y basándote en las propiedades físicas de los minerales que has estudiado, trata de clasificar y reconocer algunos de los minerales más abundantes.
1.- Con brillo metálico:
 Color gris oscuro o negro:
 Magnético (que es atraído por un imán)                                          ...................... Magnetita
 No magnético, color raya negro brillante .                                              ...................... Galena
 De otro color:
 Color raya rojo ............................. Hematites
 Color raya negro:
- En masas ...................................... Calcopirita
- En cubos ................................................. Pirita
2.- Con brillo no metálico:
 Se rayan con la uña:
 Sin sabor salado ............................Yeso
 Sabor salado .................................. Halita
 No se rayan con la uña:
 Raya el vidrio:
- Color verde ................................. Olivino
- Incoloro ....................................... Cuarzo
- Blanco o rosado ......................... Ortosa
 No rayan al vidrio:
- Con exfoliación:
 En láminas ........................................... Micas
 No laminar (en romboedros) ......... Calcita
- Sin exfoliación:
 Alta densidad, color rojo .............. Cinabrio
 Poco denso, color amarillo   ........Azufre




http://www.rockhounds.com/rockshop/mineral_id/index.html

DARWIN Y LA EVOLUCIÓN BIOLÓGICA.TRABAJO 4º A

Ape To Man - Evolution . 4ºB

7  DEC

Flu Attack! How A Virus Invades Your Body

Immune System - Natural Killer Cell

phagocytose 1

Evolution. Evidences.

 http://es.scribd.com/doc/94214348/Evolution-2012
   
http://es.scribd.com/doc/94214861/pruebasevol2012

 Panda's fore limbs, pentadactilled, have an extra opposable finger, called the "Panda's thumb". It is none but a sesamoid bone modification that Pandas use for grabbing and tearing bambu stems.
Point out the fact that there are two species of Panda, Gigant panda (Ailuropoda melanoleuca) and red panda (Ailurus fulgens), and both have the sixth thumb, but the common ancestor of both that lived 35 mill years ago did not have it. Try to give a reason for this.

Natural and sexual selection:

http://birdsofparadiseproject.org/content.php?page=111

Fossils

www.KidsDinos.com

Evolution project for students.

http://www.pbs.org/wgbh/evolution/students/index.html

           







Activity 2: Evolution's Role in History
Find out how scientific ideas paved the way for Darwin's theory of natural selection and how his theory changed the course of not just science, but also the world.

Ecological Footprint.

ECOLOGICAL FOOTPRINT

http://myfootprint.org/en/

 Ecological footprints measure humanity`s demands  on nature. Everything we do has consequences...

Ever wondered how much "nature your  lifestyle requires? You are about to find it. The Ecological Footprint   Quiz estimates  the amount of  land and ocean required to sustain your consumption patterns and absorb your wastes on an  annual basis. After answering 27 easy questions you will be able to compare your Ecological Footprint to other`s and learn how to reduce your impact on Earth.

Evolution BBC. Charles Darwin. Natural History Museum.

http://www.nhm.ac.uk/nature-online/science-of-natural-history/biographies/charles-darwin/


In 1836 Charles Darwin returned home. He returned to England after five years travelling arround the world, taking as many samples as he could. In his travel, he could notice that there were many types of species. He specially observed the tortoises when he was in the Galapagous, each one with different characteristics. You could see that there were tortoise at first sight, but they were different in some way, for example in the neck. Nothing he investigated during his travel matched together to obtend somthing clear. All was mixed up.
While Darwin was in South America, a man called Charles Lyell wrote a book where he sugested that continents move and originally all continents were together in a big one called Pangea. This theory helped Darwin in his deduction, but it wasn’t the only one. Darwin tried to put that puzzle together:

• Fossils were one of the proves that things had changed. They were similar to nowadays species, but not the same. Evidence of fossils gave support to Darwin’s posterior theory.
• In his travel he discovered the enormous diversity of species, and because of so, they can’t all been spontaneously generated. He realised that specied had to develope according to the enviroment.
• Artificial selection was used since very long time in farming. He started to link how humans select animals to how species change.
• Thumas Malthus wrote an essay called “Principles of population”. That made Darwin to put all the pieces of his puzzle together. Without deaths the world would be overpopulated. Darwin realised that there is always something that prevent overpopulation in species. The big question was, How and Why will they die to prevent overpopulation?

Finally he got the answer. He arrived to this conclusions:

• Species change, and this changes take a long time to occur.
• Because of sepecies change, the number of species will increase.
• As species increase, they all come from a common ancestor.
• The survivers of all this species will emerge because of NATURAL SELECTION.

“Individuals that are borned with better adaptations will be the ones who will survive”.

 This picture it shows how different species come from a common ancestor.

Questions:

1. What is Pangea?

2. What was the essay, that Darwin read related to population, about? 

3. When talking about adaptation, what species will survive?

4. How did Darwin explained that natural selection take place?

Inmunología

http://www.slideshare.net/mnmunaiz/inmunologa-2-bachillerato-4335063



http://www.educa.madrid.org/web/cc.nsdelasabiduria.madrid/bio_ejercicios.htm

Proceso Inflamatorio