Begin the lesson by discussing how humans have historically changed the environment through activities like deforestation and construction. This sets the stage for understanding the impact of these changes on ecosystems.

Introduce the concept of pollution and its effects on air, water, and land. Use examples to illustrate how pollution alters the environment and affects organisms.

Explain the consequences of deforestation on biodiversity and species extinction, emphasizing the loss of habitat for many organisms.

Watch the video 'Water Pollution and How We Can Reduce It!' to understand the causes and effects of water pollution and practical ways to mitigate it.

Explore the video 'The Problem of Marine Debris' to learn about marine debris and its impact on ocean ecosystems, and discuss actionable steps to reduce it.

Engage students in a role-play activity where they simulate the effects of deforestation on a forest ecosystem, observing how the removal of trees affects various organisms.

Assign students to research a local environmental issue caused by human activity and propose potential solutions. Have them present their findings to the class.

Use the assessment 'Changes to the Environment' to evaluate students' understanding of how human activities impact ecosystems and the responses of organisms.

Conduct a class discussion on the consequences of human-induced environmental changes and encourage students to reflect on their role in conservation efforts.

Administer the 'Review – Adaptations for Survival' assessment to reinforce students' understanding of adaptation concepts and evaluate their ability to apply this knowledge.