River bank filtration

Article no. P9162200 | Type: Experiments

grades 5-7
20 Minutes
10 Minutes
easy
Pupils

Also part of:

DEMO beginner Applied Sciences set Water

Article no. 13234-88 | Type: Set

Principle

The impurities are filtered out by the different layers in the pipe. On the shore of a river or lake, a similar soil stratification is present. From top to bottom, it typically consists of humus, sand, gravel and stones. Below this follows a layer that is impermeable to water.


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