Day 27 of 30
Biodiversity and conservation
Content is AI-assisted and continuously improved through educator review
Learning Objective
Students will explore biodiversity and conservation through guided practice and application.
In this lesson, we'll explore biodiversity and conservation. Scientific inquiry allows us to investigate and explain natural phenomena.
An ecosystem is all the living organisms (biotic components) in an area plus their non-living environment (abiotic components: sunlight, water, temperature, soil). Energy flows through ecosystems via food chains: Producers (plants/algae) → Primary consumers (herbivores) → Secondary consumers (carnivores) → Tertiary consumers → Decomposers (return nutrients to soil). Food webs show the complex, interconnected feeding relationships. Only about 10% of energy transfers between trophic levels (ecological efficiency). Biodiversity—the variety of species in an ecosystem—increases stability: more species means more ways to recover from disruptions. Threats to ecosystems include habitat destruction, invasive species, climate change, pollution, and overexploitation. Ecological thinking requires understanding how change in one part of a system affects all others.
As you work through today's material, pay attention to the examples and try to identify the patterns or strategies being used. This will help you apply these concepts to new problems.
Take notes on key points and make connections to what you've already learned in previous lessons.
To examine systematically through observation and experiment
Observable facts that support or refute a claim
Instructions
Materials Needed
- Lab notebook
- Investigation materials
- Safety equipment if needed
Based on today's lesson, what is one thing you observed or learned?
How could you test or investigate this topic further?
Why is this topic important in the real world?
Teaching Tip
For advanced learners: Encourage deeper analysis and real-world connections. Consider extension activities that allow students to apply biodiversity and conservation to novel situations.