Ch. 3 Lesson 2 How Does Energy Flow in Ecosystems?
sunlight <ul><li>main energy source for life on Earth </li></ul>
producers <ul><li>organisms that make their own food </li></ul><ul><li>examples:  plants, algae  </li></ul>
consumers <ul><li>organisms that cannot make their own food </li></ul>
consumer consumer producer
herbivore <ul><li>consumer that eats only plants </li></ul>
carnivore <ul><li>consumer that eats only animals </li></ul>
o mnivore <ul><li>consumer that eats both plants & animals </li></ul>
scavenger <ul><li>consumer that eats dead plants & animals </li></ul>
 
decomposers <ul><li>digest waste & remains of dead plants & animals </li></ul><ul><li>examples:  bacteria, fungi & insects...
 
food chain <ul><li>Always  begins with sunlight </li></ul><ul><li>Transfers energy (nutrients & minerals) in  1 direction ...
food web <ul><li>system of overlapping food chains </li></ul><ul><li>flow of energy branches in many directions </li></ul>
Identify the: 1. Producers   2. Primary Consumers   3. Secondary Consumers   4. Herbivores   5. Carnivores   6. Omnivores ...
Construct a Food web  using the following animals: <ul><li>SNAKE,  CORN , CATERPILLAR, DEER, CROW, MOUSE, COUGAR, SQUIRREL...
What do decomposers do? Prediction:  I predict that the _____ bread will have more mold. Bread 2 (Location) Bread 1 (Locat...
Let's Review
Producer Consumer or Decomposer
Producer Consumer or Decomposer
Consumer
Producer Consumer or Decomposer
Consumer
Producer Consumer or Decomposer
Consumer
Producer Consumer or Decomposer
Producer
herbivore <ul><li>consumer that eats only plants </li></ul>
food web <ul><li>System of overlapping food chains </li></ul><ul><li>Flow of energy branches in many directions </li></ul>
scavenger <ul><li>Consumer that eats dead plants & animals </li></ul>
sunlight <ul><li>main energy source for life on Earth </li></ul>
o mnivore <ul><li>consumer that eats both plants & animals </li></ul>
carnivore <ul><li>consumer that eats only animals </li></ul>
producers <ul><li>organisms that make their own food </li></ul>
decomposer <ul><li>Digests waste & remains of dead plants & animals </li></ul>
sunlight <ul><li>Food chains always begin with _______ </li></ul>
food chain <ul><li>Transfers energy (nutrients & minerals) in  1 direction  by eating & being eaten </li></ul>
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4th Grade-Ch. 3 Lesson 2 How Does Energy Flow in Ecosystems

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4th Grade-Ch. 3 Lesson 2 How Does Energy Flow in Ecosystems

  1. 1. Ch. 3 Lesson 2 How Does Energy Flow in Ecosystems?
  2. 2. sunlight <ul><li>main energy source for life on Earth </li></ul>
  3. 3. producers <ul><li>organisms that make their own food </li></ul><ul><li>examples: plants, algae </li></ul>
  4. 4. consumers <ul><li>organisms that cannot make their own food </li></ul>
  5. 5. consumer consumer producer
  6. 6. herbivore <ul><li>consumer that eats only plants </li></ul>
  7. 7. carnivore <ul><li>consumer that eats only animals </li></ul>
  8. 8. o mnivore <ul><li>consumer that eats both plants & animals </li></ul>
  9. 9. scavenger <ul><li>consumer that eats dead plants & animals </li></ul>
  10. 11. decomposers <ul><li>digest waste & remains of dead plants & animals </li></ul><ul><li>examples: bacteria, fungi & insects </li></ul>
  11. 13. food chain <ul><li>Always begins with sunlight </li></ul><ul><li>Transfers energy (nutrients & minerals) in 1 direction by eating & being eaten </li></ul>
  12. 14. food web <ul><li>system of overlapping food chains </li></ul><ul><li>flow of energy branches in many directions </li></ul>
  13. 15. Identify the: 1. Producers   2. Primary Consumers   3. Secondary Consumers   4. Herbivores   5. Carnivores   6. Omnivores   7. What elements are missing from this food web?
  14. 16. Construct a Food web using the following animals: <ul><li>SNAKE,  CORN , CATERPILLAR, DEER, CROW, MOUSE, COUGAR, SQUIRREL, MICROORGANISMS (decomposers) </li></ul>Draw pictures and label each organism. Draw arrows between them.  
  15. 17. What do decomposers do? Prediction: I predict that the _____ bread will have more mold. Bread 2 (Location) Bread 1 (Location) 6 7 5 4 3 2 1 Bread 3 (Location) DAY
  16. 18. Let's Review
  17. 19. Producer Consumer or Decomposer
  18. 20. Producer Consumer or Decomposer
  19. 21. Consumer
  20. 22. Producer Consumer or Decomposer
  21. 23. Consumer
  22. 24. Producer Consumer or Decomposer
  23. 25. Consumer
  24. 26. Producer Consumer or Decomposer
  25. 27. Producer
  26. 28. herbivore <ul><li>consumer that eats only plants </li></ul>
  27. 29. food web <ul><li>System of overlapping food chains </li></ul><ul><li>Flow of energy branches in many directions </li></ul>
  28. 30. scavenger <ul><li>Consumer that eats dead plants & animals </li></ul>
  29. 31. sunlight <ul><li>main energy source for life on Earth </li></ul>
  30. 32. o mnivore <ul><li>consumer that eats both plants & animals </li></ul>
  31. 33. carnivore <ul><li>consumer that eats only animals </li></ul>
  32. 34. producers <ul><li>organisms that make their own food </li></ul>
  33. 35. decomposer <ul><li>Digests waste & remains of dead plants & animals </li></ul>
  34. 36. sunlight <ul><li>Food chains always begin with _______ </li></ul>
  35. 37. food chain <ul><li>Transfers energy (nutrients & minerals) in 1 direction by eating & being eaten </li></ul>

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