1. The Energy Connection Notes

2. What is this? A food chain A diagram that shows how each living thing gets food, and how nutrients and energy are passed from creature to creature.

3. What is this called? A food web A diagram that shows the feeding relationships among organisms

4. Food Chain -vs - Food Web

5. Let’s Compare! Food Chain Food Web Linear Branching Shows relationship between 2 organisms among many organisms Both shows what organisms eat arrows show the direction energy is flowing (energy goes to the animal that is eating)

6. Primary source of energy =

7. James Prescott Joule Studied the nature of heat which led to the development of…

8. Laws of Thermodynamics The first law of thermodynamics states that energy cannot be created or destroyed; it can only be changed from one form to another. The second law of thermodynamics states that whenever energy is transformed, there is a loss of energy through the release of heat.

9. Energy is measure is units called Joules

10. How do we represent the transfer of energy in an ecosystem? Food chain Food Web Energy Pyramid

11. What is an energy pyramid? Flow of Energy 1 st trophic level 3 rd trophic level 2 nd trophic level 4 th trophic level producers herbivores carnivores 100 joules 10 joules 1 joule.1 joule

12. Numbers Pyramid 10,000 980 92 8

13. Biomass Pyramid 200,000g 19200g 2100g 189g

14. Your Turn!