Lesson C1 - Melting cryosphere and sea level rise
Preparation: 5 + 10min
The students carry out an experiment to determine that the melting of sea ice does not cause sea level rise, whereas the melting of ice on land does. Through a documentary analysis, students learn about the impacts of melting ice on freshwater supply.
The cryosphere encompasses all areas of the Earth comprising frozen water.
An increase in the temperature of the atmosphere and the ocean leads to melting of the cryosphere.
98% of the world's ice is contained in the polar ice sheets, formed by compacted snow.
Sea ice can be found in the Arctic as well as in the Antarctic. It is made of frozen water.
Permafrost is ground that has been frozen continuously for at least two years.
The melting of ice on land contributes to sea level rise, whereas the melting of sea ice does not.
The cryosphere is an important freshwater source for rivers in mid- and low- latitude mountains.
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