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Food Webs and Chains. Environmental Science Ms. Meltz. Beginning of Class Directions.

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food webs and chains

Food Webs and Chains

Environmental Science

Ms. Meltz

beginning of class directions
Beginning of Class Directions
  • Please have a seat and take some time to look over the notes worksheet. Look at the diagrams, and take a close look at the vocabulary words. If you can use prior knowledge to place any of the vocabulary words on the pyramid diagram, feel free to do so.
  • During the video, listen for any of the vocabulary wordslisted on your page, and pay close attention to any diagramsexplained in the video.
  • .

http://videos.howstuffworks.com/hsw/10359-organisms-and-environment-the-energy-flow-video.htm

food chain vs food web
Food Chain vs. Food Web
  • Food Chain = Flow of energy through trophic levels.
  • Trophic Level = Position on a food chain based on how an organism gets energy.
  • Food Web = Complex interactions between predators and prey represented by arrows. Shows several intertwined food chains.
all organisms have a role in their environment also know as their niche
All organisms have a role in their environment, also know as their Niche.
  • Producers
  • Consumers
    • Carnivore
      • Scavenger
      • Predator
    • Herbivore
    • Omnivore
    • Parasite
producers
Producers
  • Organisms that produce their own food (autotrophs)
consumers
Consumers
  • Organisms that cannot make their own food (heterotrophs)
herbivore
Herbivore
  • A plant eating organism
carnivore
Carnivore
  • A flesh eating organism
  • Predators- hunt and kill prey for food
  • Scavengers- eat dead animals
omnivore
Omnivore
  • An organism that eats both plants and animals
decomposer
Decomposer
  • Organisms that use dead organisms as food and return elements to the earth.
parasite
Parasite
  • Lives off of another organism (its host)
organisms for food web sea urchins kelp otters seals killer whale fish
Organisms For Food Web: Sea Urchins, Kelp, Otters, Seals, Killer Whale, Fish
  • Kelp Forest Video
  • Free Willy
  • Killer Whale Video
  • Killer Whale/ Blue Whale
end of class activity
End of Class Activity
  • Put your name at the top of your sticky note.
  • On your sticky note…
    • Draw a food chain pyramid, explaining each level to the best of your ability. Please give an example of an organisms in each level.
    • Also, what can you tell me about the transfer of energy between each trophic level?
  • When the bell rings, hand in your paperwork and place your sticky note on the door as you leave the room.
  • Have a nice day!!!
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