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Introducing Microbes as Decomposers

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Unit Plan: Decomposer Dynamics Lesson: 1 Time: 1 hour Setting: Classroom Objectives:

Students propose how dead plants disappear over time, then examine mold, and talk about microbes as decomposers.

Overview
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Materials:

For the class:

  • paper grocery bag of dead plant material-
  • sheet of newprint
  • copy of Who Eats What guide

For each pair of students:

  • sandwich-size  ziplock baggie of moldy squash or pumpkin (see "Planning Ahead")
  • 2 hand lenses

See Resources for further details.

Lesson Resources:
Benchmarks for Science Literacy: 5D Interdependence of Life 5E Flow of Matter and Energy NYS Standards: MST 4- Physical setting, living environment and nature of science
Next Generation Science Standards
Science and Engineering Practices: Asking questions and defining problems Planning and carrying out investigations

Hogan, Kathleen. Eco-Inquiry: A Guide to Ecological Learning Experiences for the Upper Elementary/Middle Grades. Kendall/Hunt Publishing Company, PO Box 1840, 4050 Westmark Drive, Dubuque, IA 52004-1840., 1994.