Earthworms

 

Earthworms are the most appropriate soil residents to keep in classrooms. With them it is easy to illustrate the relationships between adjustments and ecological cycle processes in soil life. As a keystone species for the soil ecosystem they are awesomely adapted to life underground. Earthworms can be observed and study well but also easy to keep in classrooms. For some students earthworms may trigger feelings of disgust. But the intensive study of these animals those feelings usually getting replaced by curiosity and sympathy. Students can discover amazing phenomena by studying independently, e.g. by simple experiments.

Main aims of the actions 

  • discover the diversity of local earthworms and their ecological niches
  • wake interest in earthworms as representatives of annelids
  • recognize the importance of earthworms to the soil habitat
  • elimination of prejudice and disgust

  

A 1 Discover earthworms diversity 

Knowledge of species, ecological relationships

A 2 Determine earthworms density quantitatively

Knowledge of species, relationships with environmental qualities

A 3 Body of a earthworm

Morphology of an annelid

A 4 Movement of earthworms 

Relationship between body constitution and locomotion

A 5 Sensory abilities of earthworms

Reaction by touch, light and chemical stimuli

A 6 Diet of earthworms 

Nourishment and humus formation in a long-term test

 

 

 

 
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