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Classify bacteria

Free printable Grade 6 science worksheet for "Classify bacteria" — practice microorganisms. No-prep, print or assign online.

Classify bacteria — free printable Middle School Science worksheetOpen in KiwiBee to download

This middle-school Life Science worksheet challenges students to classify bacteria by shape, structure, and habitat, building the taxonomic reasoning essential for understanding microbiology. Teachers can introduce it alongside a lesson on prokaryotes to help students organize new vocabulary and distinguish bacterial groups with confidence. Classifying microorganisms lays the groundwork for understanding infectious disease, beneficial bacteria, and broader ecosystem roles.

Science
Life Science
Middle School
Worksheets
Ages 11–14
hard

Learning objectives

  • Classify bacteria using shape, structure, and habitat as criteria
  • Distinguish between major bacterial groups using scientific vocabulary
  • Explain how bacterial classification connects to their ecological roles

Answer Key

Answer key for Classify bacteria — free printable Science worksheet

How to use this worksheet

  1. Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
  2. Print at home or in class for Middle School; it's no-prep, with no extra materials needed.
  3. Use the included answer key to mark it in seconds.

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