Resource extraction and ecosystem trade-offs are the focus of this Grade 5 Science worksheet for Ontario's Conservation of Energy & Resources topic. Students examine how mining, drilling, fuel transportation, combustion, and large energy projects can affect habitats, water, air, and climate while considering the difference between short-term energy benefits and long-term ecological costs.

From Extraction to Environmental Impact

The reading passage connects resource use with specific environmental changes. Students explore how surface mining can remove vegetation and soil, causing direct habitat loss, while drilling and fuel transportation can create risks such as oil spills that affect wildlife and water quality. They also examine how waste and runoff from mining sites may carry pollutants into streams and groundwater after storms.

The resource introduces the environmental effects of combustion, including air pollution and greenhouse gas emissions that can warm Earth's climate over time. Students also consider how hydroelectric reservoirs can flood valleys, alter habitats, and change downstream river flow. The central idea of trade-offs connects these impacts to decisions about energy resources.

Evidence, Trade-Offs, and Mitigation

Students work through multiple-choice questions, true-or-false statements, short-answer questions, a definitions matching activity, and a passage-completion task. The extended-response prompt asks students to explain the trade-off between short-term energy and long-term environmental impacts using examples from the reading and to describe a mitigation or reclamation approach.

Key vocabulary and concepts include habitat loss, runoff, groundwater, air pollution, greenhouse gases, mitigation, reclamation, extraction, and ecological costs. Students use information from the passage to identify environmental impacts and explain how communities can reduce harm by cleaning contaminated areas, restoring vegetation, and managing water carefully.

Teacher-Ready Support

• ✔️ Student worksheet covering resource extraction, environmental impacts, and energy trade-offs
• ✔️ Student Notes & Lesson Summary supplement for review and reinforcement
• ✔️ Separate Teacher Guide PDF with Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes

Practical Classroom Use

Use this Grade 5 environmental science worksheet for guided reading, independent practice, lesson reinforcement, discussion preparation, or written assessment. The combination of selected-response and constructed-response tasks gives students opportunities to identify evidence, explain cause-and-effect relationships, and apply the trade-off concept to resource decisions.

For an Ontario Science resource extraction lesson, this resource keeps the focus on concrete environmental consequences and practical responses. Students see how extraction and energy production can provide benefits while also creating ecological costs that may continue beyond the extraction period, making mitigation and reclamation important parts of responsible resource use.