1. Quick Write What is your favorite meal?
(List what is in the food. Which meat, plants, etc..)

2. Energy Flow & Trophic levels

3. Energy flow in ecosystems
Producers – a photosynthetic or chemosynthetic autotroph that serves as the basic food source in an ecosystem

4. Energy flow in ecosystems
Consumers – an organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients from inorganic sources

5. Energy flow in ecosystems
Consumers – an organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients from inorganic sources

6. Energy flow in ecosystems
Consumers – an organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients from inorganic sources

7. Energy flow in ecosystems
Decomposers – an organism that feeds by breaking down organic matter from dead organisms

8. Food chain
Food chain – the energy flow from one trophic level to the next
Trophic level - one of the steps in a food chain or food pyramid
Draw a food chain!

9. Food chain Herbivore – an organisms that eats plants
Carnivore – an organism that eats other animals
Omnivore – an organism that eats both plants and animals

10. Food web

11. 10% rule Only 10% of the energy consumed is stored
100 kg lion needs 1,000 kg of zebras
The 1000 kg of zebras need 10,000 kg of plants

12. Energy pyramid

13. Energy pyramid
Energy pyramid – a triangular diagram that shows an ecosystem’s loss of energy, which results as energy passes through the ecosystem’s food chain
Complete your
pyramid:

14. Populations
Population – a group of organisms of the same species that live in a specific geographical area and interbreed

15. Population growth
Exponential growth – occurs when numbers increase by a certain factor each successive period
J - Shaped
Logistic growth – a population that starts with a minimum number and reaches a maximum depending on the carrying capacity of the habitat
S - shaped

16. Exponential growth
J - Shaped
Draw the growth curve:

17. Logistic growth
S - shaped
Draw the growth curve:

18. Carrying capacity
Carrying capacity – the largest population that an environment can support at any given time

19. Logistic growth
S - shaped
Draw the growth curve:

20. Exponential growth

21. Exponential growth

22. Exponential growth

24. Factors for carrying capacity
Biotic factors –
Food
Predators
Diseases and parasites
Humans
Abiotic factors –
Weather
Climate
Water

25. Dead stuff: The secret ingredient in our food chain

26. Food web poster
Students will work in pairs to complete a food web poster
Students will research the animals, plants, and insects of a biome
Students will create a Food Web poster
Food Web Posters will show who eats what in the biome

28. Return to seats When transitioning back to seats Expectations include:
Quietly walk to your seat only AFTER being told to
Quickly get ready for the next activity
Students will stay in their seats until allowed to leave by the teacher

29. Wolves

30. A guide to the energy of the Earth