1. Bell Ringer (FEB 22)
In an ecosystem, which group would have the largest population: producers or consumers? Explain your answer.

2. How does matter move through the environment?
The Carbon Cycle
(Page 105)
Essential Question
How does matter move through the environment?

3. 1 - Energy and matter are conserved *Law of conservation of mass
What happens to matter in ecosystems?
1 - Energy and matter are conserved
*Law of conservation of mass
Matter cannot be created or destroyed
Matter can change forms
**Carbohydrates(glucose) to carbon dioxide gas in cellular respiration

4. *Law of conservation of matter

5. The Carbon Cycle

6. Photosynthesis
Plants and algae producing their own food

7. Respiration
Cells breaking down food (glucose) to produce energy

8. Combustion Fossil Fuels
The burning of matter, releasing carbon (CO2) into the atmosphere
Fossil Fuels

9. Decomposition
Matter (animal or plant) rotting, releasing carbon back into the environment

10. How does matter move through the environment?
The Carbon Cycle
Essential Question
How does matter move through the environment?

11. Conclusion
Quick Write – If matter cannot be destroyed, what happens to the matter in an organism when that organism is eaten?