Energy Flow in Food Chains Food Webs Energy
![Energy Flow in Food Chains, Food Webs, & Energy Pyramids ECOSYSTEMS Energy Flow in Food Chains, Food Webs, & Energy Pyramids ECOSYSTEMS](https://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-1.jpg)
Energy Flow in Food Chains, Food Webs, & Energy Pyramids ECOSYSTEMS
![I CAN…. Illustrate energy flow in food chains, food webs, and energy pyramids. I CAN…. Illustrate energy flow in food chains, food webs, and energy pyramids.](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-2.jpg)
I CAN…. Illustrate energy flow in food chains, food webs, and energy pyramids.
![Prior Knowledge • In 3 rd grade you learned about simple food chains, including Prior Knowledge • In 3 rd grade you learned about simple food chains, including](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-3.jpg)
Prior Knowledge • In 3 rd grade you learned about simple food chains, including the roles of producers, consumers, and decomposers. • In 5 th grade you identified the roles of organisms as they interacted and depended on one another through food chains and food webs in an ecosystem. • You learned a lot in 5 th grade. Let’s review what you learned.
![• You learned about producers and consumers like herbivores, carnivores, and omnivores. • • You learned about producers and consumers like herbivores, carnivores, and omnivores. •](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-4.jpg)
• You learned about producers and consumers like herbivores, carnivores, and omnivores. • You learned about decomposers like microorganisms, termites, worms, and fungi. • You learned about the roles of predators and prey. • You also learned about parasites and their hosts.
![Future Learning • In high school biology you will learn how to calculate the Future Learning • In high school biology you will learn how to calculate the](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-5.jpg)
Future Learning • In high school biology you will learn how to calculate the amount of energy transferred from one level to another in an energy pyramid. • You will also learn the roles that organisms play in the geochemical cycles (such as the carbon cycle, nitrogen cycle, and water cycle). • You will learn more about predation, competition, and symbiotic relationships as well.
![Essential Question What does a food chain show us? Essential Question What does a food chain show us?](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-6.jpg)
Essential Question What does a food chain show us?
![Essential Question How does energy flow through an ecosystem? Essential Question How does energy flow through an ecosystem?](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-7.jpg)
Essential Question How does energy flow through an ecosystem?
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-8.jpg)
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-9.jpg)
![Food Chains • Food chains use pictures or words and arrows to show the Food Chains • Food chains use pictures or words and arrows to show the](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-10.jpg)
Food Chains • Food chains use pictures or words and arrows to show the movement of energy through the trophic levels of organisms. • The trophic level of an organism indicates the position that the organism occupies in the food chain. • It shows what it eats and what eats it.
![Producers & Consumers The levels are numbered according to how far the particular organism Producers & Consumers The levels are numbered according to how far the particular organism](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-11.jpg)
Producers & Consumers The levels are numbered according to how far the particular organism is along the chain. • Producers are at level 1. (Plants are producers because they produce their own food. ) • Herbivores are at level 2. (consumer) • Predators are at level 3. (consumer) And so on…
![Anything that cannot make its own food must eat to survive. It must “consume” Anything that cannot make its own food must eat to survive. It must “consume”](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-12.jpg)
Anything that cannot make its own food must eat to survive. It must “consume” its food! It is a consumer.
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-13.jpg)
![Why does this look more like a “cycle” than a chain? Let’s discuss this Why does this look more like a “cycle” than a chain? Let’s discuss this](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-14.jpg)
Why does this look more like a “cycle” than a chain? Let’s discuss this one in detail.
![Why is the SUN in this picture? Why is the SUN in this picture?](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-15.jpg)
Why is the SUN in this picture?
![❑ In this food chain, what is the producer? ❑ What is the first ❑ In this food chain, what is the producer? ❑ What is the first](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-16.jpg)
❑ In this food chain, what is the producer? ❑ What is the first level consumer? ❑ What is the second level consumer? ❑ Is the polar bear the 3 rd level consumer? Explain.
![This picture shows the trophic levels. This picture shows the trophic levels.](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-17.jpg)
This picture shows the trophic levels.
![Trophic Levels Trophic Levels](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-18.jpg)
Trophic Levels
![Essential Question How is a food web different from a food chain? Essential Question How is a food web different from a food chain?](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-19.jpg)
Essential Question How is a food web different from a food chain?
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-20.jpg)
![Food Webs • Food webs describe the organisms found in interconnecting food chains using Food Webs • Food webs describe the organisms found in interconnecting food chains using](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-21.jpg)
Food Webs • Food webs describe the organisms found in interconnecting food chains using pictures or words and arrows. • In other words, food webs are a bunch of food chains all together! • They describe the complex patterns of energy flow in an ecosystem by modeling who consumes whom or what.
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-22.jpg)
![Let’s follow a few food chains found in this food web. Let’s follow a few food chains found in this food web.](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-23.jpg)
Let’s follow a few food chains found in this food web.
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-24.jpg)
![There a lot of arrows here but they’re easy to follow. Try it. There a lot of arrows here but they’re easy to follow. Try it.](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-25.jpg)
There a lot of arrows here but they’re easy to follow. Try it.
![Food Webs are EASY! Food Webs are EASY!](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-26.jpg)
Food Webs are EASY!
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-27.jpg)
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-28.jpg)
![Essential Question How does the amount of energy change as it moves through an Essential Question How does the amount of energy change as it moves through an](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-29.jpg)
Essential Question How does the amount of energy change as it moves through an energy pyramid?
![Energy Pyramids • An energy pyramid shows the amount of energy that moves from Energy Pyramids • An energy pyramid shows the amount of energy that moves from](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-30.jpg)
Energy Pyramids • An energy pyramid shows the amount of energy that moves from one trophic level to another in a food chain. • The most energy is available at the producer level of the pyramid. • The availability of energy decreases as it moves up the energy pyramid.
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-31.jpg)
![The most energy is at the producer level – the base of the pyramid. The most energy is at the producer level – the base of the pyramid.](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-32.jpg)
The most energy is at the producer level – the base of the pyramid.
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-33.jpg)
![The Energy Pyramid The Energy Pyramid](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-34.jpg)
The Energy Pyramid
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-35.jpg)
![Who needs the most energy to survive? Who needs the most energy to survive?](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-36.jpg)
Who needs the most energy to survive?
![Energy Pyramid Energy Pyramid](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-37.jpg)
Energy Pyramid
![Making a Model ❖ Let’s make a model of an energy pyramid. ❖ The Making a Model ❖ Let’s make a model of an energy pyramid. ❖ The](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-38.jpg)
Making a Model ❖ Let’s make a model of an energy pyramid. ❖ The model you will construct will be simple. It will show pictures of the producers and consumers at each level, the names in words, and the trophic levels. ❖ The good news is that this model really is perfect for meeting our objectives relating to energy pyramids. ❖ Make sure you follow all instructions for proper completion of the model.
![](http://slidetodoc.com/presentation_image_h2/5e1199f98f95286052f2311b62b8df64/image-39.jpg)
- Slides: 39