Chapter 6
Download
1 / 20

Chapter 6 - PowerPoint PPT Presentation


  • 132 Views
  • Updated On :

Chapter 6. The Earth. Our Earth is a very special place. Seeds Of Life. Liquid Water. Not too hot, not too cold!. The Earth’s atmosphere has evolved over billions of years. First atmosphere: hydrogen and helium Second atmosphere: 98% carbon dioxide

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Chapter 6' - deron


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Chapter 6 l.jpg

Chapter 6

The Earth






The earth s atmosphere has evolved over billions of years l.jpg
The Earth’s atmosphere has evolved over billions of years

  • First atmosphere: hydrogen and helium

  • Second atmosphere:98% carbon dioxide

    2% water, ammonia, methane, and nitrogen

  • Current atmosphere:78% nitrogen and 21% oxygen




Ozone layer l.jpg
Ozone Layer

  • Ozone is O3

  • Formed before early life could move from the oceans onto dry land

  • Protects the surface from hazardous UV radiation from the Sun


Chlorofluorocarbons cfc s l.jpg
Chlorofluorocarbons (CFC’s)

  • Our Ozone is destroyed by these chemicals

  • They are very efficient at removing ozone

  • Ozone slowly replenishes itself as it is created from sunlight and lightning


Slide11 l.jpg
The Earth’s magnetic field shield us from the stream of charged particles from the Sun called the solar wind


Slide12 l.jpg

Aurorae charged particles from the Sun called the solar wind



Differentiation l.jpg
Differentiation rich core


Slide15 l.jpg

Collision rich core

of two plates

forms mountains

separation

Earth’s surface is composed of about 12 major plates which slowly move relative to one another



Slide18 l.jpg

Plate tectonics produced major changes to the Earth’s surface over the past 200 million years


Earth in the future l.jpg
Earth in the Future surface over the past 200 million years


What would it be like to live in pangaea l.jpg
What would it be like to live in Pangaea? surface over the past 200 million years

  • Do you think we can learn to get along?

  • How would it affect:

    politics/government

    travel/vacationing

    animal migration

    population

    country boundaries

    import/export


ad