<p>Grade 4 review sheet – chapter 3</p><p>In addition to the questions listed below, be certain to look over your notes as well as the chapter review sheets done in class and review the chapter in the textbook.</p><p>1. What does the term ecosystem mean?</p><p>2. What are the living parts of an ecosystem?</p><p>3. What are the nonliving parts of an ecosystem?</p><p>4. What does the term population mean?</p><p>5. What does the term community mean?</p><p>6. What does the term niche mean?</p><p>7. What does the term herbivore mean?</p><p>8. What does the term omnivore mean?</p><p>9. What does the term carnivore mean?</p><p>10. What does the tem decomposer mean?</p><p>11. What does the term scavenger mean?</p><p>12. What are some characteristics of a desert ecosystem?</p><p>13. What are some characteristics of a grassland ecosystem?</p><p>14. What are some characteristics of a tundra ecosystem?</p><p>15. What are some characteristics of a forest ecosystem?</p><p>16. What are some characteristics of a tropical rain forest ecosystem?</p><p>17. What is the difference between a habitat and a niche? Give an example of each.</p><p>18. How is energy passed in an ecosystem?</p><p>19. What is the difference between a producer and a consumer? Give an example of each.</p><p>20. Are all producers plants? Explain.</p><p>21. What is the difference between a predator and prey? Give an example of each.</p><p>22. What supplies the energy at the beginning of most food chains? 23. What is a food chain? Be able to explain what is happening at each part in a simple food chain.</p><p>24. What is a food web? Be able to explain what is happening at each part in a food web.</p><p>25. What would happen if an ecosystem had only producers and consumers?</p><p>26. How does matter flow in an ecosystem?</p><p>27. What is the difference between a freshwater ecosystem and a marine (saltwater) ecosystem?</p><p>28. What are some characteristics of a swamp? Is this a freshwater or saltwater ecosystem?</p><p>29. What are some characteristics of a shallow ocean area (where a coral reef may be found)?</p><p>30. What are some characteristics of a deep sea ecosystem?</p><p>31. What does the term decay mean? Why is this important in any ecosystem?</p><p>32. What factors affect the rate of decay in an ecosystem?</p>