Week Eight
Subject: Basic Science
Class: JSS 3
Week of the Term: 8th Week
Topic: Deforestation
Sub-Topic: Reasons for Deforestation (Commercial and Domestic Firewood); Effects on the Environment; Regulations on Deforestation
Objectives
By the end of the lesson, students should be able to:
- Identify the main reasons for deforestation, including both commercial and domestic factors.
- Discuss the environmental effects of deforestation and its impact on biodiversity and climate change.
- Analyze existing regulations aimed at controlling deforestation and evaluate their effectiveness.
Entry Behaviour
Students should have an understanding of basic environmental science concepts, including ecosystems, biodiversity, and the importance of trees in the environment.
Instructional Materials
- Textbook: Basic Science for Junior Secondary School.
- Visual Aids: Diagrams or charts showing deforestation effects and regulations.
- Case Studies: Reports on deforestation in Nigeria and its consequences.
Reference Materials
- Eno, L. I., & Ojo, E. C. (2016). Basic Science for Junior Secondary School 3 Textbook. Spectrum Books Limited.
- Enemanna, U. S., & Adepegba, B. E. (2015). WABP Basic Science Made Easier for Junior Secondary School Book 3. West African Book.
Content
Reasons for Deforestation:
- Commercial Firewood: Large-scale logging operations for timber and firewood contribute significantly to deforestation, driven by the demand for construction materials and fuel.
- Domestic Firewood: Many households rely on wood as a primary source of fuel for cooking and heating, leading to the depletion of nearby forests.
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Effects on the Environment:
- Loss of Biodiversity: Deforestation disrupts habitats, leading to the extinction of plant and animal species that depend on forests for survival.
- Climate Change: Trees absorb carbon dioxide; when they are cut down, the stored carbon is released back into the atmosphere, contributing to global warming.
- Soil Erosion: Without tree roots to hold soil in place, deforestation leads to increased soil erosion, which can result in loss of arable land and increased sediment in waterways.
- Disruption of Water Cycles: Deforestation affects rainfall patterns and water availability, impacting agriculture and local ecosystems.
Regulations on Deforestation:
- Forest Reserve Acts: These laws protect designated forest areas from logging and other harmful activities.
- Sustainable Forestry Practices: Regulations encouraging sustainable practices aim to balance economic needs with environmental protection.
- Community-Based Forest Management: Initiatives involving local communities in managing forest resources sustainably help to reduce illegal logging and promote conservation.
Step 1: Introduction
Lesson Presentation (Step-by-Step Procedure)
Others removed.
