Mostrando entradas con la etiqueta medio. Mostrar todas las entradas
Mostrando entradas con la etiqueta medio. Mostrar todas las entradas

martes, 19 de julio de 2011

The Antipodes

New Zealand is situated in the South Pacific Ocean . The country runs roughly north-south with mountain ranges down much of its length. There are two main islands, the North Island and the South Island, with a third smaller island in the south.

New Zealand is in the Pacific Rim of Fire.It has an unique landscape and an unrivalled variety of landforms:snow-topped mountain ranges,sandy beaches, lush rainforests, glaciers and fiords, and active volcanoes.
It is an uncrowded country. It has a diverse multi-cultural population of just 4 million people and a rich history. Maori were New Zealand’s first settlers, arriving here about 1,000 years ago. It was first discovered by Europeans in 1642 but it wasn’t until 1769 that it was colonised and claimed by Britain. In 1840,this country was considered a nation.

I invite you to find out more things about this wonderfull place:flora and fauna, Maori people and tattoos,...
What is the meaning of "antipodes"?
What is the relationship between captain COOK and New Zealand?
How long does it takes to get there?
What kind of animal is a kiwi?

viernes, 6 de mayo de 2011

Reflection and refraction of light

Firstly, you can see some coloured rays leaving a black wheel.
After that, a person fills the container with water.
If the wheel is turned to the left, light passes from water to air and changes its direction.When light goes from a dense matter(water) to another sparse matter(air), light seems to bend.It is the refraction of light.
If the wheel is turned to the right, light hits the edge between water and air.At this moment light is reflected inside the water as well as a mirror.
You can observe this process every time a ray gets the surface of water. It is the reflection of light.
Pay attention to the video!





Did you understand the difference between reflection and refraction of light?
I hope so!

lunes, 25 de abril de 2011

Human reproduction

The presentation was too long. I divided it into two halves:the reproductive systems and the reproductive process.
Finish these sentences:
Testes can not produce sperm until ...
If a mature ovule does not meet with a mature spermatozoid,then...
The previous affirmation is related to the menstruation because...
Labour stages are:...
After birth we have belly button because...



Write a comment and explain a new thing you have learnt from the presentations.

The respiratory system

In this presentation you can observe how our lungs get the oxygen we need to live.



What is the meaning of :"exchange of gases". Which are the gases (involved in this process)?

The nervous system.

At last, I could upload your presentation.
Watch it carefully to discover how this system works...


What is a neuron? What is its function?

martes, 12 de abril de 2011

Human endocrine system

Our body uses different substances to work...Do you Know which glands produce them... Read the following presentation.



Write the most important endocrine glands and name one hormone secreted by each one of them.

Human circulatory system

In this presentation you can find out some information about our heart,blood and circulation.


Answer this question:
What is the difference between the pulmonary circulation and sistemic circulation?. Send your comments

Human musculature

You can learn more about muscles and how they work...
Send one comment and write what happens when a muscle contracts.

From cell to pluricellular living beings

Write some sentences with the bold vocabulary on this presentation and send them to the comments below the photograph.

domingo, 3 de abril de 2011

miércoles, 30 de marzo de 2011

metamorphosis

Look at these butterflies. Their bodies change from eggs to adults.
Search for the name of this process and learn the steps of it.

Our nervous system

Learn ten new words related with this topic.


jueves, 24 de marzo de 2011

Muscles and bones

Our skeleton works together with our muscles.Do you Know what they are, how they grow,how can we move...

Watch this presentation and learn a lot of things.





Ecosystems

Escucha con atención y descubrirás muchas palabras importantes relacionadas con los componentes de los ecosistemas.
Anótalas y las comentamos en clase.

martes, 22 de marzo de 2011

Africa welcomes the spring



Nature change every spring...Animals and plants enjoy the new season

The five senses

Traditonally, there are five senses: sight, smell,taste, touch and hearing. Our Knowledge of the outside world depends on our modes of perception. In order to define what is extrasensory we need to define what is sensory. The five senses consist of organs with specialized cells that have receptors for specific stimuli. These cells have links to the nervous system and thus to the brain. Sensing is done at primitive levels in the cells and integrated into sensations in the nervous system.


biogeocv.wikispaces.com


Search some information related to the senses. You can use the links in this blog.