[ppt]food chains and food webs - suffolk teaching …star.spsk12.net/science/k3/foodchains.ppt ·...
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Food ChainsFood Chainsandand
Food WebsFood Webs
Science SOL 3.5
Created by Mrs. MillerT. C. Walker Elementary School
Gloucester, Virginia
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What is a Food Chain?What is a Food Chain?A food chain is the path by which energy passes from one living thing to another.
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What’s in a Food What’s in a Food Chain?Chain?
Producers
ConsumersDecomposers
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ProducersProducersProducers make their own food
Green plants use energy from the sun to make food
Producers are on the bottom of the food chain
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ConsumersConsumersConsumers hunt, gather, and store food because they cannot make their own.
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Three Types of Three Types of ConsumersConsumers
Herbivores
CarnivoresOmnivores
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HerbivoresHerbivoresAnimals who eat plants such as:–grasshoppers–rabbits–squirrels–deer–pandas
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CarnivoresCarnivoresAnimals who only eat other animals such as:–tigers– lions–hawks–wolves–cougars
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OmnivoresOmnivoresAnimals who eat both plants and animals such as:–humans–bears
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DecomposersDecomposersMicroorganisms that are able to break down large molecules into smaller parts
Decomposers return the nutrients that are in a living thing to the soil
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Let’s LookLet’s Lookat aat aFood Food ChainChainA food chain
is a simplified way to look at the energy that passes from producers to consumers.
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Types of Food ChainsTypes of Food ChainsAquatic- Water-related food chains with sea plants and animals
Terrestrial- Land-related food chains with land plants and animals
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Predator & PreyPredator & PreyPredator- An animal that captures and eats other animals
Prey- The animal that is captured and eaten
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What is a Food Web?What is a Food Web?A more realistic way of looking at the relationship of plants and animals in an environment
Several food chains linked together
A predator from one food chain may be linked to the prey of another food chain
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Food WebsFood WebsHow many food chains can
you make from this food web?