The Change of a River From Its Source to Its Mouth
Main Aim:
To find out in which ways a river changes from its source to its
mouth.
We traveled to the west coast of Wales to find out how a river changes
from its source to its mouth. We were situated in the small rural
village of Tal-y-bont, which was near the town of Aberystwyth. The
river that we decided to test out with our hypothesis and find out our
aim on was the river Einion. The river Einion is a tributary to the
river Dovey. The river is roughly 4 miles long and 12 miles from
Aberystwyth.
Aberystwyth is mainly a tourist-based town, situated between three
vast hills, equipped with many facilities for tourists but it is also
renowned for its Castle ruins and stony beaches and also a large spit
at Cardigan Bay. Aberystwyth is the home for the University of Wales
and the National Library of Wales. The landscape of Aberystwyth is
very hilly, with many interlocking spurs and V shaped valleys in the
area. In order to test and prove our hypothesis, we conducted tests on
the river Einion at five different points along the river to show us
the changes it has made from its source to its mouth.
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This is where the river Einion is situated on a map of Wales
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River Dovey Aberystwyth River Einion
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[IMAGE][IMAGE][IMAGE] Site 5 Site 4 Site 3 Site 2 Site 1
These are the five sites that we collected data from and proved our
hypothesis at.
Hypothesis
· As the depth of the river increases from source to mouth, the
sediment size will decrease.
I came to the decision to test this hypothesis, as it is fairly
complex yet obvious. The sediment size will decrease as attrition from
boulders makes the size smaller. Also corrasion from rocks rubbing on
the riverbed will cause the bed to become deeper as the river flows
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