Microorganisms: Good Guys or Bad Guys?
Students will explore and observe microorganisms at work in decomposition as well as in the production and preservation of food. Activities include creating a "decay buffet" and identifying grocery store foods that contain or are made with the help of microorganisms.

Background
Lesson Activities
Recommended Companion Resources
Credits
Author
Debra Spielmaker | Utah Agriculture in the Classroom
Standards
Texas Content Area Standards
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Principles of Agriculture, Food, and Natural Resources: 130.2.c.1
The student demonstrates professional standards/employability skills as required by business and industry. The student is expected to:
- Principles of Agriculture, Food, and Natural Resources: 130.2.c.1.B: apply competencies related to resources, information, interpersonal skills, problem solving, critical thinking, and systems of operation in agriculture, food, and natural resources.
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Principles of Agriculture, Food, and Natural Resources: 130.2.c.4
The student explains the historical, current, and future significance of the agriculture, food, and natural resources industry. The student is expected to:
- Principles of Agriculture, Food, and Natural Resources: 130.2.c.4.B: analyze the scope of agriculture, food, and natural resources and its effect upon society.
- Principles of Agriculture, Food, and Natural Resources: 130.2.c.4.C: evaluate significant historical and current agriculture, food, and natural resources developments.
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Principles of Agriculture, Food, and Natural Resources: 130.2.c.6
The student demonstrates appropriate personal and communication skills. The student is expected to:
- Principles of Agriculture, Food, and Natural Resources: 130.2.c.6.A: demonstrate written and oral communication skills appropriate for formal and informal situations such as prepared and extemporaneous presentations.
- Principles of Agriculture, Food, and Natural Resources: 130.2.c.6.B: demonstrate effective listening skills appropriate for formal and informal situations.
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Principles of Agriculture, Food, and Natural Resources: 130.2.c.7
The student applies appropriate research methods to agriculture, food, and natural resources topics. The student is expected to:
- Principles of Agriculture, Food, and Natural Resources: 130.2.c.7.B: use a variety of resources for research and development.
- Principles of Agriculture, Food, and Natural Resources: 130.2.c.7.C: describe scientific methods of research.
- Principles of Agricultures, Food, and Natural Resources: 130.2.c.7.A: discuss major research and developments in the fields of agriculture, food, and natural resources.
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Principles of Agriculture, Food, and Natural Resources: 130.2.c.10
The student develops technical knowledge and skills related to soil systems. The student is expected to:
- Principles of Agriculture, Food, and Natural Resources: 130.2.c.10.A: identify the components and properties of soils.
- Principles of Agriculture, Food, and Natural Resources: 130.2.c.10.C: conduct experiments related to soil chemistry.
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ELA: 6.110.22.b.1
Developing and sustaining foundational language skills: listening, speaking, discussion, and thinking- oral language. The student develops oral language through listening, speaking, and discussion.
- ELA: 6.1.B: The student is expected to follow and give oral instructions that include multiple action steps.
- ELA: 6.1.D: The student is expected to participate in student-led discussions by eliciting and considering suggestions from other group members, taking notes, and identifying points of agreement and disagreement.
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ELA: 6.110.22.b.11
Composition: listening, speaking, reading, writing, and thinking using multiple texts--genres. The student uses genre characteristics and craft to compose multiple texts that are meaningful.
- ELA: 6.11.B: The student is expected to compose informational texts, including multi- paragraph essays that convey information about a topic, using a clear controlling idea or thesis statement and genre characteristics and craft.
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ELA: 7.110.23.b.1
Developing and sustaining foundational language skills: listening, speaking, discussion, and thinking- oral language. The student develops oral language through listening, speaking, and discussion.
- ELA: 7.1.B: The student is expected to follow and give complex oral instructions to perform specific tasks, answer questions, or solve problems.
- ELA: 7.1.D: The student is expected to engage in meaningful discourse and provide and accept constructive feedback from others.
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ELA: 7.110.23.b.11
Composition: listening, speaking, reading, writing, and thinking using multiple texts--genres. The student uses genre characteristics and craft to compose multiple texts that are meaningful.
- ELA: 7.11.B: The student is expected to compose informational texts, including multi- paragraph essays that convey information about a topic, using a clear controlling idea or thesis statement and genre characteristics and craft.
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ELA: 8.110.24.b.1
Developing and sustaining foundational language skills: listening, speaking, discussion, and thinking- oral language. The student develops oral language through listening, speaking, and discussion.
- ELA: 8.1.B: The student is expected to follow and give complex oral instructions to perform specific tasks, answer questions, or solve problems.
- ELA: 8.1.D: The student is expected to participate collaboratively in discussions, plant agendas with clear goals and deadlines, set time limits for speakers, take notes, and vote on key issues.
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ELA: 8.110.24.b.11
Composition: listening, speaking, reading, writing, and thinking using multiple texts--genres. The student uses genre characteristics and craft to compose multiple texts that are meaningful.
- ELA: 8.11.B: The student is expected to compose informational texts, including multi- paragraph essays that convey information about a topic, using a clear controlling idea or thesis statement and genre characteristics and craft.
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Social Studies: 6.113.18.c.21
Social studies skills. The student communicates in written, oral, and visual forms. The student is expected to:
- Social Studies: 6.113.18.c.21.D: create written and visual material such as journal entries, reports, graphic organizers, outlines, and bibliographies based on research
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Science: 6.112.26.b.1
Scientific and engineering practices. The student, for at least 40% of instructional time, asks questions, identifies problems, and plans and safely conducts classroom, laboratory, and field investigations to answer questions, explain phenomena, or design solutions using appropriate tools and models. The student is expected to:
- Science: 6.112.26.b.1.B: use scientific practices to plan and conduct descriptive, comparative, and experimental investigations and use engineering practices to design solutions to problems
- Science: 6.112.26.b.1.E: collect quantitative data using the International System of Units (SI) and qualitative data as evidence;
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Science: 7.112.27.b.1
Scientific and engineering practices. The student, for at least 40% of instructional time, asks questions, identifies problems, and plans and safely conducts classroom, laboratory, and field investigations to answer questions, explain phenomena, or design solutions using appropriate tools and models. The student is expected to:
- Science: 7.112.27.b.1.A: ask questions and define problems based on observations or information from text, phenomena, models, or investigations;
- Science: 7.112.27.b.1.B: use scientific practices to plan and conduct descriptive, comparative, and experimental investigations and use engineering practices to design solutions to problems;
- Science: 7.112.27.b.1.E: collect quantitative data using the International System of Units (SI) and qualitative data as evidence;
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Science: 7.112.27.b.14
Organisms and environments. The student knows how the taxonomic system is used to describe relationships between organisms. The student is expected to:
- Science: 7.112.27.b.14.B: describe the characteristics of the recognized kingdoms and their importance in ecosystems such as bacteria aiding digestion or fungi decomposing organic matter.
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Science: 8.112.28.b.1
Scientific and engineering practices. The student, for at least 40% of instructional time, asks questions, identifies problems, and plans and safely conducts classroom, laboratory, and field investigations to answer questions, explain phenomena, or design solutions using appropriate tools and models. The student is expected to:
- Science: 8.112.28.b.1.A: ask questions and define problems based on observations or information from text, phenomena, models, or investigations;
- Science: 8.112.28.b.1.B: use scientific practices to plan and conduct descriptive, comparative, and experimental investigations and use engineering practices to design solutions to problems;
- Science: 8.112.28.b.1.E: collect quantitative data using the International System of Units (SI) and qualitative data as evidence;