1. Ecosystems 5.L.2 Understand the interdependence of plants and animals with their ecosystems. 5.L.2.1Compare the characteristics of several common ecosystems, including estuaries and salt marshes, oceans, lakes and ponds, forests and grasslands.

2. Essential Questions What are ecosystems? What is the relationship between living things in an ecosystem? How can a model help us to understand the relationship between living things in an ecosystem? How does human interaction affect ecosystems?

3. What is an ORGANISM?

4. An organism… 1.GROWS and develops. 2.Uses ENERGY…  Makes food (photosynthesis), OR  Consumes food 3.Can REPRODUCE. 4.RESPONDS to its environment. 5.Gets rid of WASTE.

5. What are the differences between living, nonliving, and dead?

6. What are the three types of ORGANISMS?

7. Producers Plants PRODUCE their own energy through PHOTOSYNTHESIS, which is a combination of light energy from the sun, carbon dioxide from the air, and water from the soil. The “food” is glucose (or sugar) and oxygen.

8. Consumers What are the TYPES of consumers?

13. Scavengers An animal that eats carrion or dead animals.

14. What are the two types of ECOSYSTEMS?

15. Two Different Types of Ecosystems 1. Terrestrial – land 2. Aquatic – water

20. What is the difference between an ecosystem and a biome?

22. Reforestation Deforestation

23. What are some positive and negative effects of humans on the environment?

25. Three Types of Symbiosis

26. What is the difference between saltwater and fresh water ecosystems?