Energy Flow and Matter Cycles adapted by ccps.k12.va.us

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Energy Flow and Matter Cyclesadapted by
ccps.k12.va.us
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Objectives

• Discuss energy flow through different ecosystems
• Trace cycles of Carbon, Nitrogen, and water

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Ecosystem

• All the energetic interactions and material
  cycling that link organisms in a community with
  one another and with their environment

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Energy and Production
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Laws of Thermodynamics

• Energy is not created or destroyed. It changes
  form and place

• When energy changes form some of it is lost as
  heat

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Photosynthesis
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Chemosynthesis
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Compare and Contrast
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Food Chains and Food Webs
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Definitions

• Food Chain series of steps by which energy
  stored in plants is passed through an ecosystem
• Fig. 5.14

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Components

• Producers plants
• Herbivores convert plant tissue into animal
  tissue
• Carnivores eat other animals, levels
• Omnivores eats both plants and animals

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Components

• Scavengers animals that eat dead plant and
  animal matter
• Saprophytes plant and fungi that absorb dead
  material
• Decomposers everything is a decomposer

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Matter Cycles
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Law of Conservation of Mass
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Water Cycle
http//www.ndhealth.gov/wq/sw/z1_nps/images/H2O_cy
cle.gif
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Carbon Cycle

• Fig 5.16

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Carbon Cycle
http//eo.ucar.edu/kids/green/cycles6.htm
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Nitrogen cycle

• Fig. 5.17

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Nitrogen cycle
http//www.realtrees4kids.org/sixeight/cycles.htm
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?Compare and Contrast Water vs. Carbon and
Nitrogen vs. Carbon ?How are all of these cycles
alike? ?How does water, carbon and nitrogen enter
into the earths atmosphere? ?How does water,
carbon and nitrogen leave the earths
atmosphere? ?Where are each of these
stored? ?Predict If fuels are burned and
released into the atmosphere, how does carbon
dioxide effect plant growth? ?What are 3 forms
of water in the water cycle?