Sunday, 16 November 2008

Year 12 practice exam question on climate change

On Tuesday afternoon you will have your first experience of the new assessment materials/exam questions for the World at Risk unit. As promised, these are your key areas of revision...
  • short, medium and long term methods of investigating climate change
  • the arguments for natural or human causes of climate change/global warming

Here are two absolutely fantastic learning zone clips from the BBC which support everything we covered when learning about the above two bullet points...

1. Evidence of climate change: This clip looks at two main pieces of evidence for climate change; the effects of temperature on tree ring widths over the shorter term and ice cores as evidence of longer term fluctuations. It finishes by sugeesting that continental drift has a part to play over the longest time scale.

2. Causes of climate change: The clip covers climate change over a range of timescales Long term changes include changes in the suns output, the orbit of the earth, the tilt of the earths axis, wobble in the earth's axis of rotation. The clip finishes by looking at how changes in albedo and increased urbanisation and industry have influenced global warming through increased pollution.

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