1. Answer this question (in your notebook) List 2 facts about earth

2. Agenda Quiz Energy Energy and Food webs –Food web Activity

3. Energy

4. ENERGY IN THE EARTH system -interacting components that form a whole Boundaries, but matter and energy flow through them

5. ONLY energy is exchanged with the surroundings energy AND matter are exchanged with the surroundings CLOSED SYSTEMOPEN SYSTEM

6. Is Earth a Closed or Open System? CLOSED

7. Where does the energy come from? INTERNAL SOURCES EXTERNAL SOURCES VS.

8. Sun

9. Interior of the Earth

10. Water/Oceans

11. Energy Budget 1 st law of thermodynamics - energy cannot be created or destroyed

12. Think – Pair - Share 1.Think about how we influence energy budget 2.Find a partner and share your thoughts

13. Energy in Ecosystems Just listen and enjoy the VideoVideo

14. Energy in Ecosystems Ecosystem - organisms and their environment –Ocean –Rotting log Biotic Abiotic

15. Which is abiotic and biotic 1. 2. 3.

16. Major Players in an ecosystem Producers - make own food

17. Consumers – get energy by eating other organisms Primary – eat producers Secondary – eat other consumers

18. Decomposers – break down dead organisms

19. Food Chain Shows where each organisms gets its food and energy

20. Label each as producer, consumer, or decomposer

21. Food Web Interconnected food chains

22. Energy Flow Energy Pyramid - shows energy flow in a food web and how energy is lost 10% is passed on

23. Review Question Where is the largest amount of energy in an energy pyramid? Where does all of the energy originate?

24. MN Organisms - Food Web Bobcat/cougar/lynx Wolves Deer Raccoon Fish Hawks/Eagles Other birds Rodents Fungi Moose Snakes Turtles Fox Conifers Maple/Oak trees Grasses Shrubs/berries