ACA Grade 8 Science
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Ecology
Dictionary Definition -
the study of the relationships between living organisms and their environment

Water Cycle through Ecosystems

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Water Cycle 
  • All substances on Earth, including water, are repeatedly recycled.

Five processes make up the water cycle
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Condensation
  • Water vapor condenses to liquid in the atmosphere.

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Precipitation
  • Water falls back to Earth.

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Transpiration
  • Plants take up water in their roots and release it from their leaves.

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Respiration
  • Animals release water vapor as they exhale.

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Evaporation
  • Heat changes liquid water to gaseous water vapor, which rises into the atmosphere.

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