1. Cycling Big Ideas

2. 7.5B  Demonstrate and explain the cycling of matter within living systems such as in the decay of biomass in a compost bin
I can draw a diagram that shows the flow of matter.
I can explain in complete sentences, the flow of matter
I can describe what takes place in a compost bin
I can interpret/analyze diagrams of cycles

3. Matter Anything that has mass & volume (takes up space) Examples:
Plants & Animals
Water
Air

4. Law of Conservation of Matter
Matter cannot be created
Or destroyed
Only can be rearranged
Beginning Matter = End Matter
How could you have part of a dinosaur inside you?

5. Dinosaur
(Carnivore)
Plants
Dead dinosaur
Or Feces
Decomposers

6. Decomposer
Organisms that chemically break down dead organisms & feces, and returns nutrients to the soil
Examples: mushrooms, worms, bacteria, microorganisms, dung beetles, mold, insects, maggots

7. Biomass Dead plants & animals, feces/manure
Renewable energy source from biotic factors
A tropical rainforest has more biomass than a desert

8. Compost Bin Container filled with leaves, grass, fruit, etc.
Decomposers break it down chemically into humus (natural fertilizer)
Needs: moisture, air, rotated, nitrogen, carbon
Temperature increases
Amount of biomass reduces

9. Process of Decaying Reduces Biomass Increases temperature
Click below for Video Clips
Fruit & Vegetables
Rabbit

10. Need to know about DECOMPOSITION
Organic matter is broken down chemically by decomposers, returned to the soil
Temperature increases because heat energy is released by decomposers.
Biomass is reduced during decomposition.
New plants use the nutrients from the soil to grow.
Animals get nutrients they need from plants and other animals.
Nutrients needed: energy, nitrogen, carbon

11. Carbon Cycle Plants take in more carbon dioxide than they give off!
What would happen if deforestation took place? More cars?

12. Nitrogen Cycle
Where do animals get NITROGEN?

13. Water (Hydrologic) Cycle
What would happen to the water cycle without the Sun?

14. Cycles Reflection Diagram the flow of nutrients/biomass.
Explain in complete sentences the cycling of nutrients/biomass.
Use vocabulary words such as: decay, biomass, compost bin, decomposer, Law of Conservation.