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The atmosphere

Subject: Chemistry
Grade: Lower Secondary
Publisher: YDP
Resource types: Class activity
Resource ID: c675
Description:
At the end of this activity, students should be able to:
– explain how the Earth's atmosphere evolved before reaching its present composition
– describe the approximate percentage composition of the atmosphere at present
– discuss the structure of the atmosphere
– describe the process of formation of radicals by the break-up of a covalent bond
– explain how chlorine radicals can deplete the ozone layer
– explain the effect of the ozone-hole expansion on human health
– explain how the ozone layer is formed
– describe the causes of the greenhouse effect, and what impact it could have on the living conditions on Earth.

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The atmosphere
Whiteboard presentation
Consists of...
Formation of the at...
Student activity
Structure of the at...
Student activity
Reactive radicals
Student activity
Depletion of the Ea...
Student activity
Global warming
Student activity
Relevant to...
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