1. Answer these review questions (in your notebook)
Write down the 3 layers of Earth
List 2 facts about earth

2. Agenda Energy Notes Video Notes on ecosystems and food webs
Food web Activity
Review

3. Energy

4. ENERGY IN THE EARTH
system -interacting components that form an integrated whole
Described as separate but all linked
Have boundaries, but matter and energy flow through them
Earth operates as a result of the combination of smaller, interrelated systems

5. Two Type of Systems Closed Systems
energy, but not matter is exchanged with the surroundings
Open Systems
both energy and matter are exchanged with the surroundings

7. Is Earth a Closed or Open System?

8. Where does the energy come from?

9. Where does the energy come from?
Sun

10. Interior of the Earth

11. Tides-created by gravitational attraction
Least important of the three sources.

12. Energy Budget
The first law of thermodynamics - energy is transferred between systems, but it cannot be created or destroyed
The transfers of energy between Earth’s spheres are parts of an energy budget

14. Factors Influencing Energy Budget
Land use changes
Use of fossil fuels
When we burn fossil fuels it releases carbon dioxide which traps the suns energy
This leads to the overall temperature of earth to increase
Some debate as to how severe this is and how much humans impact the cycle

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

16. Video
Just listen and enjoy

17. Energy in Ecosystems Biotic-living Abiotic-not living
Ecology - study of the relationships between living things and their nonliving environment
ecosystem - a community of organisms and their abiotic environment
Examples-
Ocean
Rotting log

18. Major Players in an ecosystem
Organisms that make their own food are called producers.

19. Consumers are organisms that get their energy by eating other organisms.
Primary
Secondary

20. Decomposers are consumers that get energy by breaking down dead organisms

21. Food Chain
Shows where each organisms gets is food and energy

22. Which is abiotic and biotic

23. Label each animal as producer, consumer, decomposer

24. Food Web
Interconnected food chains

25. Energy Flow
Energy Pyramid-shows energy flow in a food web and how energy is lost

26. Carrying Capacity
Matter and energy in an ecosystem are limited, the population growth within the ecosystem is limited
carrying capacity - the largest population that an environment can support at any given time

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

28. MN Organisms-Class 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

30. HOMEWORK Make your own food web
Cut out the pictures and glue them onto a sheet of paper.
Then draw arrows showing the relationship between the organisms.

31. Review

32. Observation/create a question
Hypothesis
Test the Hypothesis
Conclusion
Alter Hypothesis or make a new hypothesis

33. Branches Geology -structure of Earth, rocks, minerals
Meteorology -atmosphere and weather
Astronomy -universe, stars, planets
Oceanography -the ocean and its organisms
Environmental –humans and the environment