Food webs, energy flow, and species interactions are the focus of this Grade 6 Science biodiversity resource, where students examine how organisms depend on one another within interconnected communities. Learners identify producers, consumers, and decomposers while exploring how energy moves through lake, meadow, and forest food webs.

🌿 Trace Energy Through Food Webs

Students identify the roles of producers, consumers, and decomposers in different ecosystems and explain how energy is transferred through trophic levels. They examine why available energy decreases across trophic levels, strengthening their ability to connect organism roles with energy flow in a food web.

The resource moves beyond individual organisms to examine what happens when community relationships change. Students describe how adding or removing a species can affect populations within an interconnected community, giving them practice reasoning about the consequences of changes to food web relationships.

🐝 Connect Species Interactions to Ecosystem Resilience

A key application involves pollination networks. Students use these networks to explain mutual dependencies between organisms and consider how those relationships can influence ecosystem resilience and vulnerability. This provides a concrete context for examining why interconnected species relationships matter when environmental conditions or community composition change.

Practice includes multiple-choice questions, true/false questions, short-answer questions, a reading passage, matching, a cloze passage, an essay, and a “Did You Know?” feature. The tasks ask learners to identify organism roles, explain trophic energy transfer, reason about population changes, and apply ideas about mutual dependencies.

📚 Materials Included for Teaching and Review

✔️ Student worksheet
✔️ Separate PDF answer key
✔️ Student Notes & Lesson Summary supplement
✔️ Separate Teacher Guide

The Teacher Guide includes Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes. The supporting materials give teachers a practical way to introduce food web concepts, guide discussion about species interactions, and review student work.

🌎 Use Within a Biodiversity Lesson

This food web worksheet can support direct instruction, guided practice, independent work, review, or assessment. Students work with examples from lakes, meadows, and forests while connecting energy flow, trophic levels, species removal or addition, and pollination relationships to broader ideas about interconnected communities.

Designed for the Ontario framework, the resource combines core food web concepts with species-interaction reasoning and includes teacher-facing support that makes it useful across different stages of a biodiversity lesson.