Food webs and energy flow in forest ecosystems are the focus of this Grade 6 Science worksheet, helping students explore how producers, consumers, and decomposers interact in Alberta forests. Students investigate how energy moves through connected feeding relationships, how nutrients return to the soil, and how environmental changes can affect the organisms within an ecosystem.

Using examples such as trees, shrubs, grasses, snowshoe hares, elk, fungi, and bacteria, learners build a clearer picture of forest food webs. They examine why plants form the starting point for many feeding relationships, how animals obtain energy by eating other organisms, and why decomposers are essential for supporting future plant growth.

Trace Energy Through a Forest Ecosystem

The reading passage introduces the roles of producers, consumers, and decomposers while showing how multiple feeding relationships connect to form a food web. Students explore how one species may eat several kinds of food and may also be eaten by more than one predator.

The lesson also connects ecosystem structure with change. Seasonal shifts, animal movements, invasive species, and pest outbreaks can influence which organisms have access to food and how energy moves through the network. These examples help students connect ecological relationships to changing conditions in forest environments.

Skills and Concepts Students Practise

This forest ecosystem worksheet combines a science reading passage with multiple-choice questions, true-or-false statements, short-answer responses, a labeled diagram, a categorization activity, and a short note. Students identify ecological roles, interpret food web relationships, and explain how energy moves among living things.

Short-answer tasks reinforce the importance of producers and decomposers, while other activities examine nutrient recycling and changes in food availability. Students also practise explaining why decomposers support plant growth and describing how a food web may change over time.

What Comes with the Worksheet

• Printable Grade 6 Science worksheet on forest food webs and energy flow.
• Separate answer key PDF for checking student responses.
• Student Notes lines at the bottom of the worksheet for recording key ideas and lesson summaries.
• Teacher Guide included in the Answer Key PDF, featuring Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes.

Classroom Use and Teaching Support

Use this resource during a Trees and Forests unit, as guided practice after introducing ecosystem relationships, or as independent review of producers, consumers, decomposers, and nutrient recycling. The Alberta forest examples provide a regional context for discussing how living things depend on one another and respond to environmental changes.

The range of response formats gives students opportunities to recall scientific vocabulary, apply concepts to ecological examples, and communicate their explanations. The separate answer key supports response checking, while the Teacher Guide offers practical prompts for class discussion and helps teachers address common misconceptions about food webs and nutrient cycling.

With its combination of ecological concepts, Alberta-based examples, and structured science practice, this resource supports Grade 6 learners as they investigate the connections between energy flow, nutrient recycling, and ecosystem stability. Alberta is identified as the curriculum framework in the resource details.