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On Monday 28th September 5 alpha went to Horton Kirby to see the river Darent, for our topic on Rivers.
When we got to Horton Kirby Education Centre, it was an old Victorian school.
We put on our wellies and went in to our classroom. We met our teacher Mr. Cliffe and then walked down the hill to Westminster Bridge where we played Pooh sticks.
Afterwards we all went into the river and did an experiment with three balls to see how fast the river was going, we repeated that two more times. A little while later we measured the width and depth of the river. We found out that the depth of the river was affected by the weir and the bridge.
Then we walked along to a meander and we could see the bend and how it had eroded. We got the three balls out again at Franks Bridge. The river flowed fastest on the far side. We found out that where the twigs and sand went the river didn’t flow very fast.
When we got back to the centre we had lunch in the playground with the Victorian toys. After that we went to the classroom.
We had a brilliant day. Thank you Mr. Cliffe.
Report by Neve, 5 Alpha
Photo's by 5A.
|click to see 17 full-size pictures|
On Monday 29th September 5 Alpha went by coach to Horton Kirby to see the River Darenth, for our topic on rivers.
When we got the Horton Kirby we went to the Education Centre, which was an old Victorian school. We went into the school room and met our guide, Mr Cliffe. We all put on our Wellington boots and walked down to Westminster Bridge and played ‘pooh sticks’. The point of which was to see which direction the river flowed. Then we went down to the bank of the river and did our first experiment.
Children went into the river with a big tape measure and measured 10m, from the bridge, down the river. We had nine coloured sponge balls, 3 red, 3 green and 3 blue. Nine children went into the river and had a ball each and stood in front of the bridge. Some more children stood 10m down the river to catch the balls and also to record the time with stopwatches. The experiment was repeated 2 more times. The point of the experiment was to see which part of the river flowed the fastest. The temperature of the water and the air temperature were also measured and the results recorded by children standing on the bank. After this experiment we measured the width of the river and the depth at every metre, the near side of the river was deeper than the far side, where there was a lot of deposition.
We then walked to a meander in the river where the ground on the outside of the bend was eroding rapidly. Our guide said that the tree there would fall at some time in the future. When we got back to the school room he showed us some photo’s of the same bank in the past and we could see how much the bank had eroded.
We walked on down the river to repeat the experiment just before Franks Bridge. We found that the river flowed fastest on the far side. This was different to the first experiment at Westminster Bridge. Near the bank where the river was slowest there was deposition of twigs and sand. We also walked in the river towards the bridge against the current to feel its strength. The current was not very strong, but our guide said that when the river was deeper the current would be stronger.
On the walk back to the centre we walked over Franks Bridge and saw flat land, called a flood plain. Back at the centre we were hungry and had lunch in a lovely playground and played with the Victorian toys. Mr Cliffe showed us slides of the river which showed where the source and the mouth of the river were.
We had an amazing day, thank you Mr Cliffe.
Report by Isobel, Joshua and Miller