Upsetting the stability
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Upsetting the Stability. Natural Events That Upset the Stability of the Ecocolumn :. Births Low food supply Death Build up of bacteria. Natural Disturbances to Ecosystems. Births and deaths Plants die or are eaten Volcanoes Earthquakes Lightning Fire.

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Upsetting the Stability

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Upsetting the Stability


Natural Events That Upset the Stability of the Ecocolumn:

  • Births

  • Low food supply

  • Death

  • Build up of bacteria


Natural Disturbances to Ecosystems

  • Births and deaths

  • Plants die or are eaten

  • Volcanoes

  • Earthquakes

  • Lightning

  • Fire


Human-made Forces Disturbing the Stability of Ecosystems:

  • Pollution such as pesticides, fertilizers, nuclear waste, garbage and exhaust fumes.

  • Pollution is the condition that results when pollutants interact with the environment.

  • 3 common pollutants are: acid rain, road salt and fertilizer.


We will duplicate human pollution in a class ecosystem study using:

  • Vinegar to simulate the effect of acid rain.

  • Kosher salt to simulate the effect of road salt.

  • Fertilizer.


pH Scale


It is time for a pH test!!

  • You will be given two liquids: A and B.

  • Using strips of pH paper, determine what happens when the paper is dipped in each liquid.

  • Which liquid represents the pH of acid rain?


Jigsaw Activity:

  • Each group will be assigned a reading selection about a common pollutant.

  • You must report back to the class about your pollutant.


Questions to answer in your presentation:

  • What is the pollutant?

  • Where does the pollutant come from?

  • Why is your pollutant a problem for natural ecosystems?

  • What can we do about the problems your pollutant causes?


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