Unit 44: Ecosystems and Environmental Science

Day 22 of 30

Human impact: pollution

6-8Science

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Learning Objective

Students will explore human impact and pollution through guided practice and application.

Today's Lesson

In this lesson, we'll explore human impact: pollution. Scientific inquiry allows us to investigate and explain natural phenomena.

Environmental science examines how living things interact with each other and their physical environment, and how human activities affect these systems. Climate change refers to long-term shifts in global temperatures and weather patterns, driven primarily since the 1800s by burning fossil fuels releasing CO₂ and other greenhouse gases, which trap heat in the atmosphere. Impacts include rising sea levels, more frequent extreme weather, shifting ecosystems, and threats to biodiversity and food security. Sustainability means meeting present needs without compromising future generations' ability to meet theirs. Strategies include renewable energy (solar, wind, hydroelectric), energy efficiency, reduced consumption, sustainable agriculture, habitat conservation, and carbon capture. Environmental problems are systems problems—solutions require understanding interconnected social, economic, and ecological factors.

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.

Key Terms
Investigate

To examine systematically through observation and experiment

Evidence

Observable facts that support or refute a claim

Activities
Instructions
1. Read the background information on human impact: pollution. 2. Form a hypothesis before beginning. 3. Conduct the investigation following procedures. 4. Record observations and analyze results.
Materials Needed
  • Lab notebook
  • Investigation materials
  • Safety equipment if needed
Practice Problems
1

Based on today's lesson, what is one thing you observed or learned?

Hint: Think about the main topic.
2

How could you test or investigate this topic further?

Hint: What experiment could you do?
3

Why is this topic important in the real world?

Hint: Think about everyday applications.

Teaching Tip

For advanced learners: Encourage deeper analysis and real-world connections. Consider extension activities that allow students to apply human impact: pollution to novel situations.

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