Activity type

Experience

Duration

15 to 30 min

Target age

7 to 12

Activity description

During this activity, observe the effect of water on soil in three models: first, bare soil, then soil covered with debris, and finally, soil covered with vegetation. Rainwater does not have the same effect on covered soils as it does on bare soil. Observe the differences and try to understand why.

View the complete activity

Topics covered

  • Water flow

  • Soil impermabilization

  • Infiltration

  • Runoff

  • Erosion

Objectives

Understand water flow and the principle of erosion and retention according to different soil types.

  • Observe the water retention and filtration capacity of plants

  • Discuss the phenomenon of soil erosion

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