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Food Chains and Food Webs
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Food Chains and Food Webs

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  • 1. Warm – Up # 3Warm – Up # 3 1.1. How is a chain different from aHow is a chain different from a web? Describe and draw aweb? Describe and draw a picture.picture. ** Write down your homework in your agenda when you are finished.
  • 2. Today’s Objective:Today’s Objective:  Describe the flow of Energy inDescribe the flow of Energy in Ecosystems through FoodEcosystems through Food Webs.Webs. Today’s Agenda :Today’s Agenda : 1.1. Warm-UpWarm-Up 2.2. Intro VideoIntro Video 3.3. Notes: Energy Flow through Ecosystems – FoodNotes: Energy Flow through Ecosystems – Food WebsWebs 4.4. Food Web ActivityFood Web Activity 5.5. Closing – Exit SlipClosing – Exit Slip
  • 3. Intro to Food WebsIntro to Food Webs VideoVideo
  • 4. Class Notes:Class Notes: Energy Flow through Ecosystems –Energy Flow through Ecosystems – Food WebsFood Webs  As we have already learnedAs we have already learned, Food Chains, Food Chains are models that describe how energy in theare models that describe how energy in the form of food passes from one organism toform of food passes from one organism to another. But, food chains are too simple toanother. But, food chains are too simple to describe the many interactions among alldescribe the many interactions among all different biotic factors in an ecosystem.different biotic factors in an ecosystem.  AA ________ ______________ ______ is made up of ais made up of a series of overlapping food chains that showseries of overlapping food chains that show the food relationships among biotic factorsthe food relationships among biotic factors in an ecosystem. It shows a morein an ecosystem. It shows a more complete model of how energy movescomplete model of how energy moves through an ecosystem.through an ecosystem. Food Web
  • 5. Example Food WebsExample Food Webs
  • 6.  Decomposers are organisms that break down ________ or _____ __________ & turn them into _________  They provide the nutrients for ____________  Examples: Fungi and Bacteria Waste Dead Organisms Soil Producers
  • 7. Food Web ActivityFood Web Activity Your Group’s task today:Your Group’s task today:  Use the animals and plants inside your groupUse the animals and plants inside your group of Envelopes (African grassland, Rainforest,of Envelopes (African grassland, Rainforest, Desert, or wetlands) and organize them intoDesert, or wetlands) and organize them into a food web.a food web.  Once you have organized them,Once you have organized them, draw,draw, color, and labelcolor, and label the food web on your blankthe food web on your blank sheet of paper. (1 paper per small group)sheet of paper. (1 paper per small group)  Use the examples in your notes as aUse the examples in your notes as a model to follow.model to follow.
  • 8. Closing – Exit SlipClosing – Exit Slip  Complete the 2 questions on theComplete the 2 questions on the half sheet of paper and turn them inhalf sheet of paper and turn them in as you leave today.as you leave today.
  • 9. Tonight’s HWTonight’s HW Complete questions 1-2 aboutComplete questions 1-2 about Marine Food Webs on p. 456.Marine Food Webs on p. 456.
  • 10. Vocabulary Book DirectionsVocabulary Book Directions  Fold about 5 pieces of paper in half andFold about 5 pieces of paper in half and staple them.staple them.  Write a creative title such as, “TheWrite a creative title such as, “The Vocabulary of Life” or whatever you chooseVocabulary of Life” or whatever you choose that describes your book.that describes your book.  For each word, write a definition and draw aFor each word, write a definition and draw a picture of the word.picture of the word. – Complete the following list of words to beginComplete the following list of words to begin your book.your book.  Abiotic FactorAbiotic Factor * Food Chain* Food Chain  Biotic FactorBiotic Factor * Herbivore* Herbivore  ConsumerConsumer * Carnivore* Carnivore  ProducerProducer * Omnivore* Omnivore  EcosystemEcosystem

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