1. Objective: SWBAT describe how water is cycled throughout an ecosystem.
Bell Work
A bird receives protection from a hippopotamus while standing on the hippo's back and eating parasites. This is an excellent example of:
mutualism
2. commensalism
parasitism
friendship

2. What is the purpose of the material cycles in an ecosystem?
Bell Work
Take out your succession “essay.” Take out you material cycle notes from yesterday.
Copy and Answer
What is the purpose of the material cycles in an ecosystem?

3. Objective: SWBAT describe how water is cycled throughout an ecosystem.
Material Cycles
In a self-sustaining ecosystem, materials must be constantly cycled between organisms and the abiotic environment.
Therefore... these same materials can be reused over and over again.

4. 3 Material Cycles Water cycle Carbon/Oxygen Cycle Nitrogen Cycle
Objective: SWBAT describe how water is cycled throughout an ecosystem.
3 Material Cycles
Water cycle
Carbon/Oxygen Cycle
Nitrogen Cycle

5. Objective: SWBAT describe how water is cycled throughout an ecosystem.
Water Cycle
involves the processes of photosynthesis, transpiration, evaporation and condensation, respiration, and excretion

6. Objective: SWBAT describe how water is cycled throughout an ecosystem.

7. Objective: SWBAT describe how carbon is cycled throughout an ecosystem.
Bell Work: List some parts of the carbon and oxygen cycle.

8. Objective: SWBAT describe how carbon is cycled throughout an ecosystem.
Carbon-Oxygen Cycle
involves the processes of respiration and photosynthesis.
Photosynthesis-
carbon dioxide + water → sugar + oxygen
Respiration-
Oxygen + sugar → ATP carbon dioxide and water
Each process compliments the other and the ecosystem maintains its balanced communities.

9. Objective: SWBAT describe how carbon is cycled throughout an ecosystem.

10. Objective: SWBAT describe how carbon is cycled throughout an ecosystem.
Bell Work
Write the chemical and word equations for photosynthesis and respiration.

11. Nitrogen Cycle Nitrogen is needed for the production of proteins
Nitrates (used by plants)‏
Build plant proteins
Eaten by animals
made into animal proteins
Plants and animals die
bacteria decay- break nitrogen molecules down
Nitrates (used by plants)

13. Regents Question
Why would a farmer see less and less of a harvest each subsequent year, if he used the same field?

14. Organic molecules- have both carbon(C) and hydrogen(H) together
Inorganic Molecules- can have carbon(C) or hydrogen(H), but not both together
Ex: H2O
CH4
C6H12O6

15. Complete Water Cycle Worksheet.
Bell Work
Complete Water Cycle Worksheet.