Category Archives: Meanders Ox Bow lakes

How Wolves make rivers meander less

This is ace. Wolves were introduced back to Yellowstone National Park 70 years after they were last there. As a result the whole ecosystem was altered.

We often bang on in lessons about linking ideas together and how in real life there are so many knock on effects. Well have a look at this video and see for yourself

More wolves means less deer (especially in the valley floors where they are easier to hunt down).

Less deer means less grazing. Less grazing means vegetation can grow more.

More vegetation means less soil erosion. Less soil erosion means less material in the rivers.

But more vegetation on the valley floors also means more stable river banks. More stable river banks means straighter rivers in places.

The animals the vegetation the ecosystem and the rivers are all interlinked

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Filed under Geography, Landscapes, Managing rivers, Meanders Ox Bow lakes, river landforms, Uncategorized, Water on the Land

Water on the Land Revision Lesson

Here is the powerpoint from the lesson. We covered: why rivers flood, meanders & ox bow lakes and the Rutland Reservoir case study

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Filed under AQA A GCSE, Geography, Managing rivers, Meanders Ox Bow lakes, revising case studies, river floods, river landforms, Uncategorized, Water on the Land

How Oxbow Lakes and Meanders form

I found this US video on this topic from our GCSE… it approaches the formation of meanders and ox bow lakes slightly differently and you might gain from seeing it from this different angle …..What could you take from this that could help you answer the questions “Describe the formation of  an oxbow lake.” (4 marks)

 

and as a comp[ariosn here is a short video from Noel Jenkins an excellent UK geography teacher 🙂


<p><a href=”https://vimeo.com/57126573″>RSA style meanders</a> from <a href=”https://vimeo.com/user799823″>Noel Jenkins</a> on <a href=”https://vimeo.com”>Vimeo</a&gt;.</p>

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Filed under AQA A GCSE, Geography, Meanders Ox Bow lakes, Uncategorized, Water on the Land

River Landforms Revision – Water on the Land

bbc meander pic

I have written previously about answering those “using a diagram describe the formation ….” questions in the physical paper. you can find that here

One of the key aspects you need to get correct is the sequence (or order) of events and to get full marks you need the whole sequence from start to finish.  I am attaching below a revision sheet to help you learn the sequence for the formation of :

  • waterfalls and gorges
  • V shaped valleys
  • floodplains
  • levees
  • meanders and ox bow lakes

Revising River Landforms

Each part of the formation is included but is in the wrong order. you can revise this by simply working out the correct order and checking against your book, but it would also be a good idea to draw a diagram or series of diagrams to show the formation and use the statements on the sheets to annotate your drawing.

Finally you should then of course have a go at an exam question to check your learning. I have posted all the past exam questions previously and you can find them here

 

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Filed under AQA A GCSE, Geography, Meanders Ox Bow lakes, river landforms, Water on the Land, Waterfalls

Excellent time-lapse of a river to show meanders and ox bow lakes

look at this simple web page

I love it!

http://9gag.com/gag/aLQ1Wgg?ref=mobile.s.tw

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Filed under AQA A GCSE, Geography, Meanders Ox Bow lakes, river landforms, Water on the Land

Revising Meanders and Ox Bow lakes

Here is a revision video guide on meanders and ox bow lakes. Covers how they are formed, what their main features are and how to answer an exam question on either of these river landforms

 

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Filed under Meanders Ox Bow lakes, river landforms, Water on the Land