Monday 27 January 2014

BIOMES



Task

Working as a group, develop a presentation to the class . Presentations must be in the form of a digital powerpoint.

Biomes


tundra
desert
temperate deciduous forest
ocean

Process

Each team will be assigned a biome by the teacher. It is the team's job to research the biome and gather facts and information about that biome. Each member of the team will become an expert in a particular aspect of the biome

Team Roles


  • Biologist- this person will be an expert in the plant and animal life of the area. 
  • Ecologist- the expert  in the environmental threads.
  • Climatologist- the expert in the type of climate: average of precipitations, temperatures,...
  • Geologist- this person will be an expert in the landforms, soils and external geological processes.
Discuss with your team which role each of you will assume. Remember that you are all responsible for learning about the biome you are presenting, but your role reflects an area of particular focus for you as your research
Each team member should choose a website from the resource list and find their biome, they should record facts and information about the biome that would be useful in the presentation. 
  http://www.biologycorner.com/worksheets/biomes_conceptmap.html#.Uuav1fuDOt8


http://www.mbgnet.net/index.html
 http://www.teachersfirst.com/lessons/biomes/biomes.cfm 

 Remember your role. You can write down anything useful you think the team will need, but your focus should be on the role you were assigned (Geologist, Biologist, Climatologist, Ecologist)




Saturday 25 January 2014

Variation and classification.


 How are all organisms similar? How are they different? Get to know more about the plant and animal kingdoms here:

http://www.bbc.co.uk/bitesize/ks3/science/organisms_behaviour_health/variation_classification/activity/



http://www.kidsbiology.com/biology_basics/five_kingdoms_life/classification1.php


Cell cycle, mitosis, meiosis.

Watch these videos and answer the questions:



1. What is the cell cycle?
2. How is the cell cycle controlled?

Mitosis:
http://www.youtube.com/watch?v=cvlpmmvB_m4


3. Make a table to compare mitosis and meiosis ( types of mother cells : haploid/diploid, number of phases, types (n,2n) and number of cells formed, biological reasons for mitosis and meiosis)

3. How is cancer related to cell reproduction?

Y en español... http://www.youtube.com/watch?v=2p4H1JHo1lk

I see you soon!!!

Optical illusions.

You can download this PDF and try some amazing experiments:

http://www.aaofoundation.org/what/heritage/upload/Eye%20Openers.pdf


You only have to choose one experiment to show to your mates  next wednesday!


Friday 10 January 2014

Planned obsolescence



The planned obsolescence is the deliberate shortening of product life spans to guarantee consumer demand.


Whatch this documentary and give us your opinion!

Tuesday 7 January 2014

Kidney dissection.

http://www.scienceteacherprogram.org/pdf/JBader11KidneyDissectionGuide.pdf




Questions: 


1.What is the main function of the kidney?
2.Describe the pathway of blood through the kidney.
3. How did you distinguish between the renal artery and the renal vein?
4.   Which area of the kidney contains the glomeruli and Bowman’s capsules?
5.   In which part of the kidney does the majority of water reabsorption occur?
6.  What structure carries urine out of the kidney and where does it go?

Sunday 5 January 2014

A planet full of life. Un planeta lleno de vida. BILINGUAL UNIT


 This bilingual unit is going to help you to study our planet, full of life.

https://docs.google.com/file/d/0BzRJteJjM7m_OTk3ODE5ZGEtODM4Yi00Y2Q1LTljOTctMzcyM2M3MWI2MDA0/edit?hl=en

Ecosystems:The structure of the ecosystems. Ecosystems. BILINGUAL UNITS.




https://docs.google.com/file/d/0BzRJteJjM7m_ZWQ4NzM1OGItZWIxZC00ZjI4LTk2YzgtZWM5OWZmOGYzMTM5/edit?hl=en

https://docs.google.com/file/d/0BzRJteJjM7m_MGNkNWQ0ZWItZjY4MS00NjlhLThiN2EtODA4NDQ5YzJjZTc0/edit?hl=en

Reproduction

http://www.slideshare.net/martagar78/reproduction-15920746

https://docs.google.com/file/d/0BzRJteJjM7m_MTE4Njg3Y2UtYjI5NC00MzFhLThiNjItNDRkMDZiNTEwNzJi/edit?hl=en

Cells. From cells to systems


 This video will help you for the understanding of the levels of biological organisation.
 I strongly recommend you to click subtitles on and complete the test that appears at the end:


http://www.bbc.co.uk/bitesize/ks3/science/organisms_behaviour_health/cells_systems/activity/

Cellular functions:   You are going to find here a wonderful place to read  key information, links, videos, animations and images about cells:

 http://www.sciencehelpdesk.com/unit/bg4/1

First life with Sir David Attenborough

http://youtu.be/xR-yMiyquG4



 David Attenborough is, no doubt about it, one of the best naturalists of our times. 
 This is worth watching!

The importance of silence in class.


Just a few minutes for an interesting topic and, even if you don't care about understanding what is going on in class, it is always good practise for your English.






 By Alex Cuesta: 

 http://naturalscience3doctormaranon.blogspot.com.es/?view=flipcard

The lymphatic system and the internal medium


Capillaries are not in direct contact with cells, so substances filter out of them into the interstitial plasma (fluid in which cells are immersed) and cells take and release substances from and into this interstitial plasma.
Liquid and nutrients are continuously going out of the blood capillaries and waste products are released into the interstitial plasma. What are we missing here? Intertitial fluid must be collected, with all that waste, and then returned to the bloodstream. This is one of the 3 roles of the lymphatic system. What are the other two?
You might need to know that it is formed by lymphatic vessels (lymphatic capillaries which join together to form lymph-collecting vessels), lymph nodes and lymph.
Lymphatic capillaries are blind-ended (closed at the end) and interstitial fluid enters by filtration (through the epithelium). This fluid travels through larger vessels, is filtered and processed by the lymph nodes, and then goes to the bloodstream via left and right subclavian veins. Can you see the internal medium circuit? blood plasma-interstitial plasma-lymph-blood plasma.

 Lymph nodes are located along some lymphatic vessels (clearly noticeable in your neck, armpits and groins). They produce lymphocytes (one type of leukocyte), release them into the vessels and filter waste out from the vessels.
Lymph:
I'm sure you realized I already gave you the second function, but what about the third one? It has to do with the digestion process.
One more thing, all of us have an especially large lymph node called spleen. When did we mention it before? (hint: something is destroyed there) and, what other functions does it carry out? 
Probably, you have found a few functions, all of them quite important, however, life is possible after its removal.



One final note: this system does not have a pump, so, how does the lymph circulate? I'm sure you already know this.
(From naturalscience3doctormaranon.blog)

Excretion

Anatomy of the excretory system:



When the bladder fills up, the micturition reflex makes the bladder contract and push the urine out via the urethra. At the beginning of the urethra there is a sphincter (ring of smooth muscle) which stays closed as long as the micturition reflex does not occur. 
 After watching these videos, what do you make? Is urination voluntary or involuntary? Why urinary infections are more common in females than in males?

Cell biology animation

 Everything you have wanted to know about the cell in  just a click on this link:



http://www.johnkyrk.com/index.html

Cells song!