cycling of matter. what will we learn? cycling of matter within living systems example of living...
Post on 19-Dec-2015
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Cycling of Matter
What will we learn?
• Cycling of matter within living systems• Example of living system: compost bin
Conservation of Matter
• Matter of a closed system will remain constant over time
• Matter is not created or destroyed but transformed into more complex forms
Cycling of Matter
Nutrients in the Soil
Plants Herbivores Predators
Waste and Death
Decomposition
Decomposition
Decomposition
• Break down of organic matter into simpler forms of matter
AB A+B
• Complex plants break down into the major elements that compose them like carbon, nitrogen, phosphorous and more.
C + N + P + …
Composting• Break down of Matter
How does the matter break down?
• Micro-organisms– Bacteria– Actinomycetes– Fungi– Protozoa– Rotifers
• Worms
Ingredients for Successful Composting
• Carbon source (browns)• Nitrogen source (greens)• Water• Oxygen
Composting Cycle
OrganicWaste
Micro-organisms Worms
Compost
Replenish SoilCycle of Matter
Composting Cycle
• The decomposing step within the cycle of matter has its own cycle.
• This is the cycle of a compost bin