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Cycles of Matter

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Cycles of Matter – PowerPoint PPT presentation

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Title: Cycles of Matter


1
Cycles of Matter
2
The Cycles of Matter
  • Three cycles that moves matter among the
    environment and living things
  • Water cycle
  • Carbon cycle
  • Nitrogen cycle

3
The Water Cycle
4
The Water Cycle
  • The movement of water among oceans, atmosphere,
    land, and living things.
  • Precipitation- water moving from atmosphere to
    land
  • Ex rain, snow, sleet, hail
  • 91 falls into the ocean, 9 on land renews fresh
    water supply

5
The Water Cycle
  • Evaporation- water moving from the land to the
    atmosphere
  • The suns heat causes water to change from liquid
    to vapor
  • Condensation- water vapor becoming liquid again
    due to cool atmosphere
  • Transpiration- water moving from living things
    back into the atmosphere
  • Ex evaporation from leaves, perspiration from
    humans

6
The Water Cycle
  • Ground Water- precipitation that seeps into the
    ground and is stored in underground caverns and
    porous rock
  • Provides water for the soil, streams, rivers, and
    oceans
  • Our water supply is not getting larger so we must
    protect our fresh water from pollution!!

7
The Water Cycle
8
The Carbon Cycle
9
The Carbon Cycle
  • The movement of carbon from the environment into
    living things and back again
  • Carbon is essential to all living things because
    it is part of our molecules.

10
The Carbon Cycle
  • Photosynthesis- carbon moves from the environment
    into living things
  • Plants use carbon dioxide from the air to make
    sugar
  • Animals get carbon from eating plants
  • Respiration- carbon moves from living things back
    to the environment
  • Sugar molecules are broken down to release energy
    and carbon dioxide is given off when we exhale

11
The Carbon Cycle
  • Decomposition- carbon moving from dead organisms
    back to the environment
  • Fungi and bacteria decompose dead organisms
  • Combustion- the process of burning fuel
  • Burning fossil fuels releases carbon back into
    the atmosphere

12
The Carbon Cycle
13
The Nitrogen Cycle
14
The Nitrogen Cycle
  • The movement of nitrogen from the environment to
    living things and back again.
  • 78 of our atmosphere is nitrogen gas
  • Nitrogen fixation- the process of bacteria
    changing nitrogen gas into usable nitrogen for
    plants
  • Animals get nitrogen from eating plants
  • Other bacteria decompose dead animals and animal
    waste and return nitrogen to the atmosphere

15
The Nitrogen Cycle
16
Dr. Destruction Comic Strips
  • You and your group will be responsible for
    creating a comic strip featuring an evil villain
    who plans to destroy an ecosystem by interrupting
    one of the cycles that runs in an ecosystem.
  • Choose one cycle from the following
  • Water Cycle
  • Carbon Cycle
  • Nitrogen Cycle

17
Dr. Destruction Comic Strips
  • The comic strip must explain
  • The way the cycle works
  • How the villain plans on disrupting the cycle
  • What effects the villains interruptions will
    have on the cycle
  • What plan your superheroes have for stopping the
    interruption
  • You will be graded on
  • Having all requirements in your comic strip
  • Using color and creativity in the final product
  • All members will be graded on the final project
    with a participation grade added based on their
    involvement in the project.
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