Food%20Chains

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Food Chains
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The Source of ALL Energy

• All organisms need energy.
• The main source of energy on Earth is sunlight.

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Producers

• Organisms that make their own food are called
  producers.
• Plants are producers. Algae and bacteria are
  producers too.
• Producers use energy from sunlight to make their
  own food.
• When they make their food, energy from the sun is
  stored in their bodies.

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Producers
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Consumers

• Organisms that get energy by eating other
  organisms are called consumers.
• Animals are consumers.
• Animals are classified in 3 groups
• Herbivores
• Carnivores
• Omnivores

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Consumers
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Herbivores

• Organisms that eat only plants and plant
  products.
• They get energy by eating roots, stems, leaves,
  flowers, fruits, and plant sap.
• Elephants, some insects, gorillas, deer, cows,
  rabbits, grasshoppers, and snails.

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Carnivores

• Organisms that eat other animals.
• Carnivores get energy by eating the bodies of
  other organisms.
• Carnivores have adaptations that make them good
  hunters. Strong legs, sharp claws and teeth,
  good eyes and ears.
• Ladybugs, spiders, lions, sharks, hawks, hyenas,
  killer whales, owls, wolves, and praying
  manitises.

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Omnivores

• Organisms that eat both plants and animals.
• Bears, cockroaches, crows, raccoons, coyotes, and
  humans.

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Decomposers

• Decomposers are organisms that eat (get their
  energy from) dead plants and dead animals.
• Decomposers break down dead materials.
• They help ecosystems by returning nutrients back
  to the soil for plants to use.

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Food Chains

• All food chains start with the sun. The sun
  gives energy to plants (producers).
• Plants give energy to herbivores (consumer).
• Herbivores give energy to carnivores (consumer).
• The path of energy from one organism to another
  is called a food chain.

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In a food chain, the arrow points to who is
getting the energy.
In this food chain, the grass is getting energy
from the sun. The grasshopper is getting energy
from the grass. The snake is getting energy from
the grasshopper. The hawk is getting energy from
the snake.
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Questions
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What is an adaptation of a herbivore?
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Flat teeth to grind plants.
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What is an adaptation of a carnivore?
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Sharp teeth and claws to catch and kill prey
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What is a decomposer?
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Decomposers are organisms that eat (get their
energy from) dead plants and dead animals
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What provides energy in a food chain?
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The sun
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Does a producer or consumer make its own food?
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Producer
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Where does the arrow point in a food chain?
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To who is getting the energy