Mc kay kyle_energy flow food webs
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PowerPoint Assignment EDU 653

PowerPoint Assignment EDU 653

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Mc kay kyle_energy flow food webs Presentation Transcript

  • 1. Author: Kyle McKay6th Grade Science
  • 2. 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
  • 3. Trophic LevelsTrophic levels refer to the position of an organism in a food chain – this position can change depending on what an organism is eatingThe Trophic Levels• Producer• Primary Consumer• Secondary Consumer• Tertiary Consumer• Quaternary Consumer• Decomposer
  • 4. ProducersProducers are plants (typically) that have the ability tocapture the energy from the sun and convert it intoenergy in the usable form of sugar using photosynthesis
  • 5. Primary Consumers Organisms that eat plants are called primaryconsumers because they are first in the food chain.
  • 6. Secondary ConsumersOrganisms that eat primary consumers are calledsecondary consumers because they are second in the food chain.
  • 7. Tertiary ConsumersOrganisms that eat secondary consumers are called tertiary consumers because they are third in the food chain. (Tertiary means three)
  • 8. Quaternary ConsumersOrganisms that eat tertiary consumers are calledquaternary consumers because they are fourth in the food chain. (Quaternary means four)
  • 9. DecomposersOrganisms that break down dead organisms thatget recycled back into the Earth as nutrients thatthe producers are able to use for continued growth.
  • 10. Types of Consumers • Herbivore • Carnivore • Omnivore • Scavenger
  • 11. HerbivoresOrganisms that only eat producers (plants)Grasshoppers are an example of a herbivore
  • 12. CarnivoresOrganisms that only eat other animals (meat-eaters) The African Lion is an example of a carnivore
  • 13. OmnivoresOrganisms that eat both plants and animals are called omnivores Humans are an example of omnivores
  • 14. ScavengersOrganisms that eat dead animals, usually the remains of a kill left over from another organism. Vultures are an example of scavengers
  • 15. Flow of EnergyIn a food chain we use arrows to show where the energy is flowing. Energy
  • 16. Food ChainsA food chain is how we follow the flow of energythrough an ecosystem with only one organism at each level.
  • 17. 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!
  • 18. 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
  • 19. References• Background Web Picture • Picture of Mushroom • Picture of Snake – Author: Public Domain – Author: Public Domain – Author: Public Domain – Image: Source – Image: Source – Image: Source• Picture of Sunset • Picture of Grasshopper • Picture of Hawk – Author: Public Domain – Author: Public Domain – Author: Public Domain – Image: Source – Image: Source – Image: Source• Picture of Flowers • Picture of African Lion – Author: Public Domain – Author: Public Domain • Picture of Vulture – Image: Source – Image: Source – Author: Public Domain• Picture of Whitetail Buck • Picture of People Eating – Image: Source – Author: Public Domain – Author: Public Domain – Image: Source – Image: Source – Resources• Picture of Wolf • Picture of Grass – Trophic Levels – Author: Public Domain – Author: Public Domain – Qld science teachers – Image: Source – Image: Source – Geography4Kids• Picture of Black Bear • Picture of Grasshopper 2 – Author: Public Domain – Author: Public Domain – Images – Image: Source – Image: Source – Public Domain Images• Picture of Kid Hunting • Picture of Mouse – Author: Public Domain – Author: Public Domain – Image: Source – Image: Source