1. week 1

2. ecosystem all the living and nonliving things that interact with each other in an environment

3. habitat the environment where an organism lives

4. pollution anything in the environment that can harm living things or damage natural resources

5. pollutant a harmful substance added to Earth’s land, water, or air

6. producer an organism that makes its own food

7. consumer an organism that gets energy by eating other organisms

8. scavenger a meat-eating animal that feeds on the remains of dead animals

9. carnivore an animal that eats other animals

10. herbivore an animal that eats only plants or plant products

11. omnivore an animal that eats both plants and animals

12. food chain the path of food energy from one organism to another in an ecosystem

13. food web overlapping food chains with different pathways for the flow of food energy in an ecosystem

14. Slide 2: http://www.northtexasaquascapes.com/ecosystem3blabel.jpg Slide 3: http://adm.elpasoco.com/NR/rdonlyres/217C624C-52C9-4943-9FBB- 7287EA39A078/0/Habitat_2.jpg Slide 4: http://kassandraproject.files.wordpress.com/2007/12/air-pollution- systems.jpg Slide 5: http://i.treehugger.com/images/2007/10/24/number-air-water-soil- pollution.jpg Slide 6: http://cropandsoil.oregonstate.edu/sites/default/files/news/RyeGrass.jpg Slide 7: http://www.isrealli.org/wp-content/uploads/cow.JPG Slide 8: http://www.africanbirdclub.org/countries/grf_global/Tanzania-Augur- Buzzard.jpg Slide 9: http://www.jamsbphotos.co.uk/USERIMAGES/Carnivore(1).jpg Slide 10: http://assets.panda.org/img/upper_yangtze_forests_105346_1_2869.jpg Slide 11: http://mrgrassosclass.com/images/omnivore.jpg Slide 12: http://www.jenningsk12.net/WE/peimann/Science/FoodChains/food_chain.jpe Slide 13: http://library.thinkquest.org/J0113170/forest/images/foodweb.jpg