1. How Ecosystems Work

2. Review: Everything is connected.
Yarn Game from G2G

3. How Wolves Change Rivers

4. Make a list of all of the things you would need for survival:
Separate your list into “Have to have” and “would be nice to have”

5. Ecosystems
An ecosystem is all of the organisms living in an area together with their physical environment.
Examples of ecosystems?

6. Components of an Ecosystem
In order to survive, ecosystems need certain basic components:
energy
mineral nutrients
carbon dioxide
water, oxygen
living things.

7. Biotic and Abiotic Factors
Biotic Factors are living things.
Animals
Fungi
Bacteria
Plants
Dead organisms
Dead parts of organisms (leaves)
Waste products

8. Biotic and Abiotic Factors
Abiotic Factors are nonliving things
Air
Water
Rocks
Sand
Light
Temperature

9. Organisms An organism is an individual living thing.
Organisms have a role and interact in ecosystems
A species is a group of organisms that can mate to produce fertile offspring.

10. Population
A population is a group of the same species that live in the same place.

11. Communities
A community is a group of various species that live in the same place and interact with each other.

13. Habitat
The place an organism
lives is its habitat.

14. Energy Flow in Ecosystems

15. Life Depends on the Sun
Energy from the sun enters an ecosystem when organisms use sunlight to make energy/carbs in the process of photosynthesis.
As organisms consume other plants or animals, energy is transferred from one organism to another.

16. Producers vs. Consumers
A producer is an organism that makes its own food.
aka: autotrophs
A consumer is an organism that gets its energy by eating other organisms.
aka: heterotrophs

17. What eats what? Carnivore – eats meat Herbivore – eats plants
Omnivore – eats both
Decomposer – break down organic matter from dead organisms
Allows nutrients in rotting material to return to soil, water, and air.

18. Energy Transfer
Each time one organism eats another, a transfer of energy occurs.
Scientists study how energy flows through different parts of an ecosystem to find out how organisms depend on one another to survive.

19. Food Chains and Food Webs
A food chain is the path in which energy is transferred from one organism to the next as each organism eats another
In nature ecosystems, energy does not flow in a simple chain.
A food web includes more organism and shows the feeding relationships between organisms that are possible.

20. Trophic Levels
Each step through which energy is transferred in a food chain is known as a trophic level.
Each time energy is transferred from one organism to another, less energy is available to organisms at the next tropic level.
Only 10% of the energy is transferred from one tropic level to the next.

21. Trophic Levels
Energy pyramids – the higher the trophic level, the less stored energy there is to be passed on.
Because energy is lost at each level, there are fewer organisms at the top levels.

22. “One-Pagers”

23. One Pager Requirements
Title – use creative fonts to reflect the content
Symbolic border to represent the theme
At least three images
Include essential/relevant vocab terms and their definition.
Main idea: A paragraph that summarizes the information. Include real-life connections.
Ignore the Costa questions thing for now.
Do not include quotations. (that would be if we were doing this for an article.)