Wednesday, July 22, 2009

Powerpoint slides available on slideshare

Hi all,

Please note that the following powerpoint slides are now available on slideshare:

1. Composition of air
2. Human respiratory system
3. Plants and Fish respiratory system
4. Forces - Push and Pull

It is compulsory for everyone to download the slides, print them and file them in your science files. For those who have trouble doing so, please make a copy from you your friends.

Thanks.

Ms Tay

Powerpoint slides available on slideshare

Hi all,

Please note that the following powerpoint slides are now available on slideshare:

1. Composition of air
2. Human respiratory system
3. Plants and Fish respiratory system
4. Forces - Push and Pull

It is compulsory for everyone to download the slides, print them and file them in your science files. For those who have trouble doing so, please make a copy from your friends.

Thanks.

Ms Tay

BBC Websites for forces

Hi all,

As mentioned in class, please DO go to the following websites and try on their hands on experiment.


1. http://www.bbc.co.uk/schools/scienceclips/ages/5_6/pushes_pulls.shtml


2. http://www.bbc.co.uk/schools/scienceclips/ages/6_7/forces_movement.shtml


3. http://www.bbc.co.uk/schools/ks2bitesize/science/activities/friction.shtml


4. http://www.bbc.co.uk/schools/ks2bitesize/science/activities/forces_action.shtml


Enjoy yourselves!!!

Ms Tay

Thursday, July 16, 2009

Human Respiratory Diagram



Hi all,

Please study the human respiratory diagram carefully. Please note how the air sacs are surrounded by the capillary beds.

Just to clarify, the windpipe branches into the lungs as air tubes called bronchi. It is then further branched into smaller air tubes found in air sacs called alveoli. The alveoli are surrounded by capillaries. When the air passes through the alevoli, it will enter the capillaries and will be dissolved in the blood.

Thanks.




Ms Tay

Tuesday, July 14, 2009

Air and Respiratory System

Hi all,

As mentioned in class, please download the powerpoint slides from slideshare that were used today and print them out. Put them in your science file.

Also, please find out: how micro-organism breathe.

Share also with us the different breathing methods of various groups of animals namely: mammals, birds, fishes, amphibians, reptiles, inverterbrates and insects.

Thank you.

Enjoy :)