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Tuesday, February 24, 2009

Andrew Sim 1 2C Research 1

Andrew Sim 2C 1 Research 1.docx

Posted by Andrew Sim at Tuesday, February 24, 2009 0 comments

Andrew Sim 1 2C Research 2

Andrew Sim 1 2C Research 2.docx

Posted by Andrew Sim at Tuesday, February 24, 2009 0 comments

Friday, February 20, 2009

Ozone Pictures

Ozone Pictures.zip

Posted by Ang Xiang Jing at Friday, February 20, 2009 0 comments

Announcement

Please do conduct the 10 survey you are holding on to

Andrew- Age 13-19 + (2) 55 & above

Xiang Jing- Age 20-54 + (2) 55 & above

Yuan Kai- Age 7-12+ (2) 55 & above

Deadline: 24 Feb 2009

Posted by Alan at Friday, February 20, 2009 0 comments

Alan Chan_Reflection06

Posted by Alan at Friday, February 20, 2009 0 comments

Ozone Infomation

Ozone Infomation.docx

Posted by Alan at Friday, February 20, 2009 0 comments

Wednesday, February 18, 2009

Andrew Sim Reflection_04

My reflection 4 Andrew Sim.docx

Posted by Andrew Sim at Wednesday, February 18, 2009 0 comments

Andrew Sim Reflection_03

My reflection 3 Andrew Sim.docx

Posted by Andrew Sim at Wednesday, February 18, 2009 0 comments

Tuesday, February 17, 2009

Ang Xiang Jing Reflections_6

Ang Xiang Jing (Reflections 6).docx

Posted by Alan at Tuesday, February 17, 2009 0 comments

Wednesday, February 11, 2009

Survey Questions

Are you aware that the ozone layer is depleting.docx

Posted by Alan at Wednesday, February 11, 2009 0 comments

Xiang Jing_Reflection05

Ang Xiang Jing (Reflections 5).docx

Posted by Alan at Wednesday, February 11, 2009 0 comments

Sunday, February 8, 2009

Alan_Reflection05

Posted by Alan at Sunday, February 08, 2009 0 comments

History Of Ozone Layer

History of ozone layer.docx

Posted by Alan at Sunday, February 08, 2009 0 comments

Thursday, February 5, 2009

Yuan Kai_Reflection02

GRACE Reflection2. ChenYuanKai.docx

Posted by Alan at Thursday, February 05, 2009 0 comments

Andrew Sim_Reflection02

My reflection 2 Andrew Sim 2C 1

Posted by Alan at Thursday, February 05, 2009 0 comments

Andrew Sim_Reflection01

GRACE 2008 Andrew Sim 01.docx

Posted by Alan at Thursday, February 05, 2009 0 comments

Tuesday, February 3, 2009

Xiang Jing_Reflection04

Ang Xiang Jing (Reflections 4).docx

Posted by Alan at Tuesday, February 03, 2009 0 comments

Xiang Jing_Reflection03

Ang Xiang Jing (Reflections 3).docx

Posted by Alan at Tuesday, February 03, 2009 0 comments

Monday, February 2, 2009

YuanKai_Reflection04

GRACE Reflection4. ChenYuanKai

Posted by Alan at Monday, February 02, 2009 0 comments

YuanKai_Reflection03

GRACE Reflection3. ChenYuanKai.doc

Posted by Alan at Monday, February 02, 2009 0 comments

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Sec 2C Register 1-4 E.Agents

PERSEVERANCE IS OUR STRENGTH

Reduce, Reuse, Recycle

Reduce, Reuse, Recycle

Did you know?

Chlorofluorocarbons (CFCs) were invented by Thomas Midgely in the early 1920s. They were used in air conditioning/cooling units, as aerosol spray propellants prior to the 1980s, and in the cleaning processes of delicate electronic equipment. They can also occur as by-products of some chemical processes. No significant natural sources have ever been identified for these compounds - their presence in the atmosphere is due entirely to human nature.

Did you know?

When ozone-depleting chemicals reach the stratosphere, they are dissociated by ultraviolet light to release chlorine atoms, which will act as a catalyst and break down tens of thousands of ozone molecules before being they are removed from the stratosphere.

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