YRQMGSF Flow Action Demonstration Model Educational Flowing Landform Structure Model for Geology Class Teaching Demonstration,Green,45c

YRQMGSF

This instrument is suitable for primary and secondary school natural geography teaching, teaching the surface of the earth in the erosion of flowing water, transport, accumulation of landforms formed by the visual teaching aids. Flowing water is widely distributed on the land surface, it is in the flow process, constantly changing the surface morphology, shaped into a variety of flowing water landform types, flowing water to wet areas generally active Flowing water has erosion, transport and accumulation. When the flow rate, the flow increased to a certain extent, flowing water erosion, erosion down the material is transported away, on the contrary, the accumulation of action occurs The erosion of flowing water is manifested as under erosion and side erosion. Downward erosion refers to the flowing water and its sand and gravel, the deepening of the valley erosion Bypass erosion is the erosion of flowing water on both sides of the valley, the result of which makes the bank slopes back, the valley widening. Undercutting and bypass erosion are always interrelated and occur at the same time