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

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

    • Ch. 3 Lesson 2 How Does Energy Flow in Ecosystems?
    • sunlight
      • main energy source for life on Earth
    • producers
      • organisms that make their own food
      • examples: plants, algae
    • consumers
      • organisms that cannot make their own food
    • consumer consumer producer
    • herbivore
      • consumer that eats only plants
    • carnivore
      • consumer that eats only animals
    • o mnivore
      • consumer that eats both plants & animals
    • scavenger
      • consumer that eats dead plants & animals
    •  
    • decomposers
      • digest waste & remains of dead plants & animals
      • examples: bacteria, fungi & insects
    •  
    • food chain
      • Always begins with sunlight
      • Transfers energy (nutrients & minerals) in 1 direction by eating & being eaten
    • food web
      • system of overlapping food chains
      • flow of energy branches in many directions
    • 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?
    • Construct a Food web using the following animals:
      • SNAKE,  CORN , CATERPILLAR, DEER, CROW, MOUSE, COUGAR, SQUIRREL, MICROORGANISMS (decomposers)
      Draw pictures and label each organism. Draw arrows between them.  
    • 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
    • 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
      • consumer that eats only plants
    • food web
      • System of overlapping food chains
      • Flow of energy branches in many directions
    • scavenger
      • Consumer that eats dead plants & animals
    • sunlight
      • main energy source for life on Earth
    • o mnivore
      • consumer that eats both plants & animals
    • carnivore
      • consumer that eats only animals
    • producers
      • organisms that make their own food
    • decomposer
      • Digests waste & remains of dead plants & animals
    • sunlight
      • Food chains always begin with _______
    • food chain
      • Transfers energy (nutrients & minerals) in 1 direction by eating & being eaten