1. Cycling of Matter

2. What will we learn? Cycling of matter within living systems
Example of living system: compost bin

3. 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

4. Cycling of Matter Decomposition Decomposition Plants Herbivores
Predators
Nutrients in the Soil
Waste and Death
Decomposition

5. 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 + …

6. Composting
Break down of Matter

7. How does the matter break down?
Micro-organisms
Bacteria
Actinomycetes
Fungi
Protozoa
Rotifers
Worms

8. Ingredients for Successful Composting
Carbon source (browns)
Nitrogen source (greens)
Water
Oxygen

9. Composting Cycle Cycle of Matter Replenish Soil Micro-organisms Worms
Organic
Waste
Cycle of Matter
Replenish Soil

10. Composting Cycle
The decomposing step within the cycle of matter has its own cycle.
This is the cycle of a compost bin