Ecosystem Review

1. Ecosystem Review

2. 1. What are the non-living parts of a woodland ecosystem? • Snakes, lizards, toad • Air, water, light • Crickets, isopods, earthworms • Strawberries, willow trees, flowers

3. Non-living parts of an ecosystem are air, water, soil, rocks, and sunlight. You could also include altitude

4. 2. Which of these is a freshwater ecosystem? • Atlantic Ocean • Falls Lake • Pacific Ocean • Indian Ocean

5. Freshwater ecosystems are aquatic systems which contain drinkable water or water of almost no salt content. Freshwater resources include lakes and ponds, rivers and streams, reservoirs, wetlands, and groundwater. Salt water ecosystems are aquatic systems that contain salt water. All oceans are salt water ecosystems.

6. 3. At the NC aquarium there is a large salt water touch tank. Which best describes this tank? • Large ecosystem • Mountain ecosystem • Model ecosystem • Tank ecosystem

7. This is a model ecosystem because it represents an ecosystem.

8. 4. Which is these organisms make their own food? • Snakes and lizards • Snails and isopods • Plants and algae • Pond snails and fish

9. Plants are producers. Plants produce food from the energy of the sun. .

10. 5. Which of these is needed for algae and aquatic plants? • Warm temperature • Rocks • Fish • Sunlight

11. Plants need sunlight, water and soil to complete Photosynthesis to make food.

12. 6. Which of these is a fast moving aquatic environment? • Aquarium • Meandering River • Mountain Stream • Tidal Pool

13. Meandering river Aquarium Slow Slow Mountain Stream Slow Fast Tidal Pool

14. 7. Calvin and Joe are setting up an aquarium. Why are they careful not to add too much elodea? • Elodea attracts small insects. • Duckweed is better to add. • Too many of one organism can crowd the system. • Too much elodea turns the water green.

15. You can’t have too much of any plant or animal in your ecosystem, or it will crowd out the other living things.

16. 8. What ecosystem would have shells, sand and tidal pools? • Desert • Ocean • Pond • Riverbank

17. Ecosystems Ocean Tidal Pool Desert Riverbank Pond

18. 9. When testing the Ph of soil what must you do? • Make sure pH paper is in the sun. • Make sure the pH paper is dry • Press the pH paper until it is moist. • Tape the ph paper outside of the terrarium.

19. PH paper must be moist to test the pH.

20. 10. Why did we plant the seeds in the terrarium several days before we added the animals? • Animals needed the plants for food. • Seeds were more important. • Seeds won’t grow without sunlight. • Animals need more space.

21. We planted the seeds that would grow into plants. The grass fed the crickets.

22. 11. What do producers contribute to an ecosystem? • They are the “clean up” crew? • They eat the consumers. • They eat small plants. • They make their own food and oxygen.

23. Producers make their own food. Consumers eat producers Decomposers are the “clean up” crew.

24. 12. Which organisms recycle decaying plants and animals into something useful? • Decomposers • Producers • Consumers • Trees

25. Scavengers eat dead and decaying matter.

26. 13. How do you classify animals, plants and algae? • Ecosystem • Habitat • Model • Organisms (Living)

27. Algae Algae

28. 14. What kind of plant would you have in an aquarium? • Grass • Rye • Elodea • Wheat

29. Elodea was the plant we put in the aquarium.

30. 15. Which of the following is a non-living thing? • Fish • Snails • Elodea • Sunlight

31. Sunlight is a non-living thing

32. 16.What is the source of energy for the frog? 4 • 1 • 2 • 3 • 4 1 3 2

33. Caterpillar is the source of food for the frog.

34. 17. Which of these are the only organism that can make food from non-living material? • Producers • Consumers • Decomposers • Water

35. Producers make their food from the sun, water and soil which are non-living things.

36. 18. What is the primary (main) energy source for all organisms? • Decomposers • Producers • Consumers • Sun

37. The sun provides energy to producers who make their own food. Consumers eat the plants or animals that eat the plants.

38. 19. If a plant is missing part of a leaf, what might you think is happening in the aquarium? • The plant is dead. • An animal is eating the plant • The water is too cold. • The aquarium needs more snails.

39. Not the kind of fish that we had in our aquarium.

40. 20. How can you be sure the fish are eating the plants? • Remove some of the fish • Add some fish • Add more snails • Observe the fish and record what happens.

41. Observation and note taking is the best way to know what is going on in the aquarium or any investigation.

42. 21. What would you use to test the effects of acid rain in your ecosystem? • salt • baking soda • lemon • milk

43. Lemons are acids like vinegar. You could use them to make a test solution.

44. 22. What is a variable in an investigation? • The thing that changes • The thing that stays the same • Writing in your science notebook • Your prediction

45. 23. What is the control in an investigation? • The thing that changes • The thing that stays the same • What is written in your science notebook • None of the above

46. Control What stays the same Variable What changes If you wanted to investigate the effect of acid rain, you could have two aquariums. Put an acid solution in one, which would be the variable, and nothing in the other. That would be the control.

47. 24. Which of these is an environmental problem? • People hunting • Fertilizer too close to a river • Bicycle lanes • All of the above

48. Environmental Problems • Acid rain • Rock salt on covered road • Air and water pollution • Fertilizer going into water sources • Over population of some animals

49. 25. When you are doing an investigation, what is a prediction? • The information or data you collect • The focus question you are answering • What you think will happen • What you learned