Biodiversity Measures in Communities gives Grade 4 Science students focused practice with biodiversity in habitats and communities. Students examine how species richness, relative abundance, and evenness describe biodiversity within a community, while considering how native and introduced species can influence community composition over time.

What Students Explore

The resource develops key vocabulary and concepts connected to biodiversity measures and community composition. Students explain species richness, relative abundance, and evenness; identify changes associated with introduced and native species; and describe how habitat heterogeneity can support greater biodiversity. The activities provide opportunities to apply these ideas through multiple-choice questions, true-or-false statements, short-answer responses, a reading passage, matching, a cloze passage, an essay, and a “Did You Know?” component.

What’s Included

• Student worksheet covering biodiversity measures in communities
• Student Notes & Lesson Summary supplement for supporting the lesson content
• Teacher Guide PDF with Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes

Classroom Use

Use this Grade 4 biodiversity worksheet as structured science practice during a Habitats & Communities lesson, as an independent assignment, or as a way to reinforce concepts after instruction. The combination of selected-response, written-response, reading, matching, cloze, and essay activities gives students different ways to work with the same core scientific ideas.

Why This Resource Fits the Lesson

Rather than treating biodiversity as a single definition, the resource connects several measurable features of a community. Students work with species richness, relative abundance, and evenness while also examining the effects of native and introduced species and the role of habitat heterogeneity. The accompanying notes supplement and teacher guide provide additional instructional support, including discussion prompts and common mistakes to address during teaching.

Designed for Grade 4 Science and centered on Habitats & Communities, this resource provides a practical way to teach and reinforce biodiversity concepts within an Ontario-focused classroom context.