Ecosystems

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A Powerpoint about Ecosystems. Find it here:
http://www.salem.k12.va.us/staff/jcox/powerpoints/science.htm

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Ecosystems

  1. 1. ECOSYSTEMS
  2. 2. Living things + Nonliving things ECOSYSTEM
  3. 3. Living things in an ecosystem are called a… COMMUNITY
  4. 4. Population Population + Population COMMUNITY
  5. 5. All energy in a food web comes from the… SUN
  6. 6. What makes ecosystems different? Amount of water Amount of sunlight Type of soil 1 2 3
  7. 7. Name the three members in every community. Producers Consumers Decomposers
  8. 8. What causes ecosystems to change? Natural causes: Drought Disease Fire Overpopulation 3 2 1 4
  9. 9. What causes ecosystems to change? Changes caused by humans: Water pollution Air pollution Land pollution Construction 1 2 3 4
  10. 10. How can humans help to prevent changes in ecosystems? Use resources wisely Laws that control pollution Clean up litter Keep rivers and lakes clean 1 2 3 4

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