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Science worksheet on bacteria with a reading passage, vocabulary definitions, and fact-extraction questions about bacterial shapes and behavior.
Worksheet

Bacteria and Decomposers

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This printable science worksheet teaches students about bacteria as decomposers. After reading a passage about what bacteria are, where they live, and how they eat, students extract key facts about size, habitat, and feeding. The worksheet also covers three bacterial shapes: spirilla, bacilli, and cocci. Useful for elementary science, life science units, or environmental science classes.

Subject:
Science
Topic:
Biology
Grade Level:
3rd – 5th Grades
Updated June 2026

Word Bank

  • absorb: to take in bacteria: tiny one-celled organisms

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