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WORDS 30-32FOOD CHAINFOOD WEB
FOOD PYRAMID
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30. Food Chain- A series of events in
which one organism eats another to obtain energy
In this food chain a flower is eaten by a caterpillar which is eaten by a frog which is eaten by a snake which is eaten by an owl
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Flower caterpillar frog snake owl
Tell me some things that you notice about this food chain
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ALL food chains start with a producer
What do you think would happen to us if there were no plants in the world?
We would starve to death. All food chains begin with a producer so even the carnivores ultimately rely on plants
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Hold it just one second! Actually, all food
chains start with the sun because that is where plants get their energy from
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Your turn! Make a food chain that
has at least 4 members Don’t forget that all
food chains start with a producer
Label the members of your food chain as:
-producer -1st order consumer - 2nd order
consumer - 3rd order consumer
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What organism is at the top of your food chain?
The organisms at the top are usually your big predators.
Such as, a bear, a shark , an eagle
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Guess who else is at the top
That’s right, humans are!
There aren’t too many things that eat a human
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Strange but true…. Sometimes a food
chain only consists of 2 organisms
Like a human eating an apple
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31. Food Web- A series of
overlapping food chains
Looks confusing! Start with a plant and follow the
arrows
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32. Food Pyramid- A diagram that shows
the amount of energy that moves from one feeding level to another in a food web
Energy is lost at each level of the food pyramid
The food pyramid is often called the energy pyramid