What Goes Around, Comes Around

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What Goes Around, Comes Around

• Exploring the Interdependence of Factors in an
  Ecosystem Using Earths Cycles

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Emporia State University July 2007Stacey Hart,
Brandi Miller, Rosemary McGuire

• Unit One

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• How do abiotic and biotic factors drive Earth
  cycles?
• The purpose of this unit is for the students to
  be able to understand the role that each of
  Earths cycles play in an ecosystem, and apply
  this knowledge to explaining natural phenomena.

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Instructional Goals

• Students will observe phase changes in water and
  relate them to processes involved in the
  hydrological cycle
• Students will model the processes in the carbon
  dioxide-oxygen cycle
• Students will trace a particle of nitrogen and
  carbon through their respective cycles to observe
  their interconnectedness

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Sequence

• Activity 1. Brainstorm What do plants need for
  life?
• Lab 1. Hydrological Cycle
• Activity 2. Demo Cyclical Cycle
• Worksheet 1 Hydrological Cycle
• Activity 3. Demo Magic Voice

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Sequence

• Activity 4. Demo Science Smoothie
• Worksheet 2 Carbon Dioxide- Oxygen Cycle
• Enrichment 1 Carbon Dioxide- Oxygen cycle

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Sequence

• Activity 6 Nomadic Nitrogen
• Worksheet 3 Nomadic Nitrogen
• Activity 7 Cruisin Carbon
• Worksheet 4 Cruisin Carbon

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Standards

• Standard 3 Life Science
• Benchmark 4 The student will understand the
  interdependence of organisms and their
  interaction with the physical environment
• Indicator 1 understands atoms and molecules on
  the earth cycle among the living and nonliving
  components of the biosphere.
• Ex The essential chemical elements for life
  circulate in the biosphere in characteristic
  paths known as biogeochemical cycles (e.g.,
  cycles for water, nitrogen, carbon, oxygen, etc)

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Standards

• Standard 4 Earth/Space Science
• Benchmark 1 The student will understand that
  the structure of the earth system is continuously
  changing due to earths physical and chemical
  processes.
• Indicator 2 Models Earths cycles, contructive
  and destructive processes and weather systems
• Ex Creates rock cycle and water cycle
  dioramas.

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1. Brainstorming

• Through leading questions we will draw out the
  substances necessary for plants to live
• Carbon Dioxide
• Food
• Water
• Sunlight

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2. Hydrological Cycle

• Evaporation, Condensation, Transpiration,
  Precipitation

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3. Cyclical Cycles

• Formative Assessment Probe that checks for
  enduring understanding
• Teacher Demo

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4.Worksheet 1 Hydrological Cycle

• Checks for understanding and knowledge of
  vocabulary

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5. Demo Magic Voice

• Teacher demonstration to model respiration
• Phenolpthalein/NaOH solution

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6. Science Smoothie

• Teacher demonstration that models photosynthesis

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7. Worksheet 2 Carbon Dioxide-Oxygen Cycle

• Check for enduring understanding with basic
  formulas based on demonstration

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8. Nomadic Nitrogen
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9. Carbon Cycle

• Cruisin' Carbon Game