<ul><li>UNIT ONE OF THE GCSE COURSE </li></ul>DYNAMIC PLANET
 
 
 
<ul><li>Create a chart to show the 4 ‘spheres’, with links between them.   </li></ul><ul><li>Define each ‘sphere’. </li></...
 
 
The lithosphere  (or geosphere) The Earth's solid surface, including continental and oceanic crust as well as the various ...
The hydrosphere  (water) The hydrosphere is the sphere which includes all of the water on Earth.  71% of the Earth is cove...
The atmosphere  - Air The atmosphere is a gaseous layer that surrounds the Earth. It consists of a mixture of gases compos...
The biosphere  (living things) The biosphere is all life on earth, including man, and all organisms (both plants and anima...
  How are the Spheres connected? <ul><li>The four spheres are closely connected in many ways. For example, many birds (bio...
An ‘event’ may be climate change. For example the burning of trees (biosphere) will release carbon dioxide (into the atmos...
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Intro To Spheres

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Intro To Spheres

  1. 2. <ul><li>UNIT ONE OF THE GCSE COURSE </li></ul>DYNAMIC PLANET
  2. 6. <ul><li>Create a chart to show the 4 ‘spheres’, with links between them. </li></ul><ul><li>Define each ‘sphere’. </li></ul><ul><li>Add ways in which the spheres are linked eg plants use CO2 from the air. </li></ul><ul><li>For each sphere, add at least one way in which it: </li></ul><ul><ul><li>Benefits people </li></ul></ul><ul><ul><li>can negatively affect, or harm, people </li></ul></ul><ul><ul><li>people can negatively affect the ‘sphere </li></ul></ul>
  3. 9. The lithosphere  (or geosphere) The Earth's solid surface, including continental and oceanic crust as well as the various layers of the Earth's interior.
  4. 10. The hydrosphere  (water) The hydrosphere is the sphere which includes all of the water on Earth.  71% of the Earth is covered by water
  5. 11. The atmosphere  - Air The atmosphere is a gaseous layer that surrounds the Earth. It consists of a mixture of gases composed primarily of nitrogen, oxygen, carbon dioxide, and water vapour.
  6. 12. The biosphere  (living things) The biosphere is all life on earth, including man, and all organisms (both plants and animals). 
  7. 13. How are the Spheres connected? <ul><li>The four spheres are closely connected in many ways. For example, many birds (biosphere) fly  through the air (atmosphere), while water (hydrosphere) often flows through the soil (lithosphere). In fact, the spheres are so closely connected that a change in one sphere often results in a change in one or more of the other spheres.     </li></ul><ul><li>Warm water from the ocean (hydrosphere) evaporates until the atmosphere above can hold no more. The wind (atmosphere) moves the moisture (water vapour in the atmosphere) over a colder mountainous area (lithosphere). The atmosphere above it becomes colder and the water vapour condenses and changes to rain. The rain (atmosphere) falls on the land (lithosphere) and returns to the oceans (hydrosphere).   </li></ul>
  8. 14. An ‘event’ may be climate change. For example the burning of trees (biosphere) will release carbon dioxide (into the atmosphere) which traps heat and changes climate patterns (atmosphere) that lead to melting of ice sheets and cause sea levels to rise (hydrosphere). This reduces the land (lithosphere) available for human occupation.
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