Mc kay kyle_energy flow food webs

Author: Kyle McKay6th Grade Science

http://www.public-domain-image.com/cache/fauna-animals-public-domain-images-pictures/insects-and-bugs-public-domain-images-pictures/spiders-pictures/spider-web-with-water-dews-on-it-in-sunrise_w483_h725.jpg

Big Ideas...• Energy begins with the sun

• Plants absorb sunlight to make sugars

• The energy travels up our ecosystem through the different energy levels

• Producers- Consumers - Decomposers

• There are different types of consumers

• Food Chains show the flow of energy

• Energy is transferred as you move up the food chain


Trophic LevelsTrophic levels refer to the position of an organism

in a food chain – this position can change depending on what an organism is eating

The Trophic Levels

• Producer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

• Quaternary Consumer

• Decomposer


ProducersProducers are plants (typically) that have the ability to capture the energy from the sun and convert it into energy in the usable form of sugar using photosynthesis


Primary ConsumersOrganisms that eat plants are called primary

consumers because they are first in the food chain.


Secondary ConsumersOrganisms that eat primary consumers are called secondary consumers because they are second in

the food chain.


Tertiary ConsumersOrganisms that eat secondary consumers are called

tertiary consumers because they are third in the food chain. (Tertiary means three)


Quaternary Consumers

Organisms that eat tertiary consumers are called quaternary consumers because they are fourth in

the food chain. (Quaternary means four)


DecomposersOrganisms that break down dead organisms that get recycled back into the Earth as nutrients that the producers are able to use for continued growth.


Types of Consumers

•Herbivore

•Carnivore

•Omnivore

•Scavenger


HerbivoresOrganisms that only eat producers (plants)

Grasshoppers are an example of a herbivore


CarnivoresOrganisms that only eat other animals (meat-eaters)

The African Lion is an example of a carnivore


OmnivoresOrganisms that eat both plants and animals are called omnivores

Humans are an example of omnivores


ScavengersOrganisms that eat dead animals, usually the remains of a kill left

over from another organism.

Vultures are an example of scavengers


Flow of EnergyIn a food chain we use arrows to show where the

energy is flowing.

Energy


Food ChainsA food chain is how we follow the flow of energy through an ecosystem with only one organism at

each level.


Energy Levels• At each level of the food chain, each organism uses up

some of the energy before it gets passed on to another organism

• Roughly 90% of the energy is transferred at each level, leaving only 10% of the energy as we move up the food chain

• This is why ecosystems can only support 3 or 4 levels of consumers because anything above that is receiving an insufficient amount of energy

• This is why it’s important to eat your fruits and vegetables, primary consumers get the most energy out of what they are eating!


Summary...

• Energy begins with the sun

• Plants absorb sunlight to make sugars

• The energy travels up our ecosystem through the different energy levels

• Producers - Consumers - Decomposers

• There are different types of consumers

• Food Chains show the flow of energy

• Energy is transferred as you move up the food chain


References• Background Web Picture

– Author: Public Domain

– Image: Source

• Picture of Sunset


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• Picture of Flowers


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• Picture of Whitetail Buck


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• Picture of Wolf


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• Picture of Black Bear


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• Picture of Kid Hunting


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• Picture of Mushroom


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• Picture of Grasshopper


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• Picture of African Lion


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• Picture of People Eating


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• Picture of Grass


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• Picture of Grasshopper 2


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• Picture of Mouse


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• Picture of Snake


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• Picture of Hawk


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• Picture of Vulture


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– Resources

– Trophic Levels

– Qld science teachers

– Geography4Kids

– Images

– Public Domain Images


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http://www.public-domain-image.com/fauna-animals-public-domain-images-pictures/deers-public-domain-images-pictures/white-tailed-deer-pictures/adult-white-tailed-deer-buck-odocoileus-virginianus.jpg.html

http://www.public-domain-image.com/fauna-animals-public-domain-images-pictures/foxes-and-wolves-public-domain-images-pictures/an-endangered-gray-wolf-peers-out-from-a-snow-covered-shelter.jpg.html

http://www.public-domain-image.com/fauna-animals-public-domain-images-pictures/bears-public-domain-images-pictures/american-black-bear-ursus-americanus.jpg.html

http://www.public-domain-image.com/sport-public-domain-images-pictures/fishing-and-hunting-public-domain-images-pictures/boy-hunter-watches-for-birds-coming.jpeg.html

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http://www.public-domain-image.com/people-public-domain-images-pictures/crowd-public-domain-images-pictures/people-having-quality-time-with-family-and-lunch.jpg.html

http://www.public-domain-image.com/nature-landscapes-public-domain-images-pictures/grass-public-domain-images-pictures/agricultural-grass.jpg.html

http://www.public-domain-image.com/fauna-animals-public-domain-images-pictures/insects-and-bugs-public-domain-images-pictures/grasshopper-pictures/leaf-grasshopper.jpg.html

http://www.public-domain-image.com/fauna-animals-public-domain-images-pictures/rats-mice-and-voles-pictures/prebles-meadow-jumping-mouse-endengered-mammal-species-zapus-hudsonius-preblei.jpg.html

http://www.public-domain-image.com/fauna-animals-public-domain-images-pictures/reptiles-and-amphibians-public-domain-images-pictures/snakes-pictures/close-up-of-head-of-puerto-rican-boa-snake-epicrates-inornatus.jpg.html

http://www.public-domain-image.com/fauna-animals-public-domain-images-pictures/birds-public-domain-images-pictures/hawks-falcons-birds-pictures/marsh-hawk-bird-circus-cyaneus.jpg.html

http://www.public-domain-image.com/fauna-animals-public-domain-images-pictures/birds-public-domain-images-pictures/black-vulture-bird-coragyps-atratus.jpg.html

http://www.bcb.uwc.ac.za/sci_ed/grade10/ecology/trophics/troph.htm

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Mc kay kyle_energy flow food webs