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Lesson 3.3: WATER CLEANS THROUGH A BIOLOGICAL CYCLE

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  • How can a river clean itself?
  • 3. LIFE IN A RIVER
  • Lesson 3/3

Main idea

Living conditions and plant and animal communities are connected through food chains into a biological cycle. Dead organic matter represents food for plants, which is food for animals.

Goal

To explain to the students how various living organisms are connected through food chains into a biological cycle and why water cleans through the biological cycle.

Concepts

food chains -> biological cycle -> water purification processes

Introduction: What is a food chain?

Together with students, try to figure out what food chains are.

Activities in this lesson

Biological Cycle
3.3.1
Subject: Biology, Chemistry, Language
Age group: 10 - 12, 13 and up
Type of activity: Debate, Project
Number of participants: Individual, Paired, Team
Our river
3.3.2
Subject: Biology
Age group: 10 - 12, 13 and up
Type of activity: Debate, Project
Number of participants: Individual, Paired, Team

Discussion: How organisms purify water

Discuss with students how water organisms purify water from organic pollution. (Organic pollution from homes and farms represents food for some macroinvertebrates and bacteria that use it as food and decompose it in inorganic matter, which is used by plants and algae for their growth. Water purifies itself through including organic pollution in food chains in the biological cycle.)

TOPICS

  • 1. RIVER AND RIVER BASIN
    • Lesson 1/1
    • Lesson 1/2
  • 2. THE SHAPE OF A RIVER
    • Lesson 2/1
    • Lesson 2/2
  • 3. LIFE IN A RIVER
    • Lesson 3/1
    • Lesson 3/2
    • Lesson 3/3
  • 4. POLLUTION IN RIVERS
    • Lesson 4/1
    • Lesson 4/2
  • 5. WATER QUALITY IN RIVERS
    • Lesson 5/1
  • 6. SELF-PURIFICATION PROCESSES IN RIVERS
    • LESSON 6/1
  • 7. RIVERS WITH HIGH SELF-PURIFICATION CAPABILITY
    • Lesson 7/1

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Type of Activity

Age Group

Number of participants

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Donors

 

This project is partly financed by the European Union and City of Vienna

Partners

Associated partners

logo-eledan

info@water-detective.org

General contact:
info@water-detective.org

Lead partner and initiator:
ICRO – Institute for Integral Development and Environment, Sl

SI contact: marta.vahtar@icro.si

Partners:

Institute of Biology Bucharest,
Romanian Academy, Bucharest , RO
RO contact: biodiversitateibb@gmail.com

Institute for Multidisciplinary Research, Belgrade, RS
SR contact: lenhardt@ibiss.bg.ac.rs

Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, BG
BU contact: luchezarpehlivanov@gmail.com

Links:

www.eledan.eu
www.water-detective.net
www.facebook.com/water.detectives

Last change: 29.04.2019

© ICRO Domžale, 2019 All rights reserved