area outside the dyke thatis not protected against the water
the border between land and water where sand accumulates
the area drainded by a river and its tributaries
weathering by wich the compostion of the rock changes due to the action of oxygen and damp
small microscopic grains which are formed due to weathering
new land that formed in the sea by sedimentation at the mouth of the river into the sea
mounds of sand blown up by the wind
the continued wearing down of land surfaces by one of the transporting agents: water, wind or ice
big and heavy rocks carried and left behind by glacial ice
artificial manure made in a factory
remains of a imprint of an animal or plant
large bodies of ice in mountains that as a result of an accumulation of snow and move very slowly over land
igneous rock characterised by specks
a mountain range equal or higher than 1500 metres above sea level
rock that forms when magma solidifies
sedimantary rock formed by compressed shells
lowest part of a river, near sea level
liquid rock in the earths mantle
rock moving down a slope due to gravity
dropping of animals used to fertilise fields
weathering wich rock crumbles but does not change in compostion
a valley formed by meltwater from an ice tongue eroding part of a push moraine
part of the river halfway the upper and lower course
a mountain range with little relief and low, worn down peaks
type of soil formed from compact dead vegetation
flat are with little elevation ( less then 500 metres)
dutch term for an area, often below sea level, surrounded by dykes in which the water level is regulated by pumping stations
a pump used to remove water in the polders
hills formed by ice tongues pushing land upwards in front of the ice tongues
diffrences in height (shape) of the land surface
stones which have been rounded by river water
small grains of rock formed by weathering and still visable by the naked eye
shallow area in the sea
sedimentary rock formed by compressed sand
proces by which grains come to rest in one place
rock formed by layers of sediment rock
sedimentary rock by layers of commpressed clay
manmade hills made to provide safe ground during flooding
the part of the waddenzee that falls dry during low tide
source of the river, the upper part of the river that often runs trough the mountains
the breaking down of rock under the influence of the weather and flora
a mountain range with much relief and high and sharp peaks