Embedded Files
I wonder, why is our coast disappearing?
Foreword
This lesson will provide students with a visual understanding of the sea's influence, particularly the tide, on beach erosion. Additionally, they will observe how beach defences can help reduce the erosion of the shoreline.
Previous Learning
Pupils will have learnt about erosion and weathering, understanding why it happens and can identify how coastal features are created – such as bays, headlands, stacks, arches, spits and beaches.
Looking at how erosion has happened over the years - Criciceth beach.
Resources
Transparent containers, sand, small rocks, water, blue food colouring, plastic paddle (piece of firm plastic), iPad (with time-lapse function in the camera), black sharpie pen.
Activities
The pupils are to create a water tank model with a sloped beach with sand, outlining the shape of the beach on the side of the container with a sharpie. Pupils will observe how waves affect a sandy, unprotected beach. The waves will be created by the pupils for 2 minutes following a sound clip of a metronome beating to 60bpm.
Pupils film the beach erosion with the iPads using ‘timelapse’.
They re-create the beach following their outline but this time they will add small rocks to their beach and repeat the creation of the waves, all the while filming with the ‘timelapse’. Pupils are to compare the videos and can come to a conclusion as to why some popular beaches have stones placed upon them, whilst others do not.
How It looked
IMG_0595.MOVIMG_0597.MOVIMG_0681.MOVIMG_0683.MOVNext Steps
Create a model of Llandudno with LEGO or on Tinkercad - Sim Lab and test out their theories of which material would be better suited to protect the beaches from erosion.
Page updated
Google Sites
Report abuse