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The Reservoir Made of Moss
Posted by Grundschule Oberreichenbach, Germany on 24 July 2018

In our most instructive excursion with moor expert Mr. Günther to the “Würzbacher Moor”, a nature reserve and protective forest, we were exceptionally allowed to take a handful of two different types of moss.

Our goal was to find out how much water this moss can store.

First we dried and weighed the moss. After that, the moss was placed in water for 20 minutes and weighed again. The increase of the weight was more than fourfold for one type of moss and sevenfold for the other one. Then the moss was put into the water again overnight. The next day the increase in weight was more than fivefold, tenfold respectively compared to the dry weight.

Thus this nature reserve with its moss is a big water reservoir and very valuable!

All waterexplorers of the team “17 water drops” were amazed by how much water such a little piece of moss can store. We also combined the calculation with our mathematics lessons.

The experiment was very interesting and it is a great pleasure for us to share it with all of you!


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