Warm – Up # 3Warm – Up # 3

1.1. How is a chain different from a How is a chain different from a web? Describe and draw a web? Describe and draw a

picture. picture.

** Write down your homework in your agenda when you are finished.

Today’s Objective:Today’s Objective: Describe the flow of Energy in Describe the flow of Energy in

Ecosystems through Food Ecosystems 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 – Food Notes: Energy Flow through Ecosystems – Food WebsWebs

4.4. Food Web ActivityFood Web Activity

5.5. Closing – Exit SlipClosing – Exit Slip

Intro to Food WebsIntro to Food Webs

VideoVideo

Class Notes:Class Notes: Energy Flow through Ecosystems – Energy Flow through Ecosystems –

Food Webs Food Webs As we have already learnedAs we have already learned, Food Chains , Food Chains

are models that describe how energy in the are models that describe how energy in the form of food passes from one organism to form of food passes from one organism to another. But, food chains are too simple to another. But, food chains are too simple to describe the many interactions among all describe the many interactions among all different biotic factors in an ecosystem. different biotic factors in an ecosystem.

A A ________ ______ ________ ______ is made up of a series of is made up of a series of overlapping food chains that show the food overlapping food chains that show the food relationships among biotic factors in an relationships among biotic factors in an ecosystem. It shows a more complete ecosystem. It shows a more complete model of how energy moves through an model of how energy moves through an ecosystem. ecosystem.

Food Web

Example Food WebsExample Food Webs

Decomposers are organisms that break down ________ or _____ __________ & turn them into _________

They provide the nutrients for ____________

Examples:Fungi and Bacteria

Waste DeadOrganismsSoil

Producers

Food Web ActivityFood Web ActivityYour Group’s task today:Your Group’s task today: Use the animals and plants inside your group Use the animals and plants inside your group

of Envelopes (African grassland, Rainforest, of Envelopes (African grassland, Rainforest, Desert, or wetlands) and organize them into Desert, 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 label color, and label the food web on your blank the 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 a Use the examples in your notes as a model to follow.model to follow.

Closing – Exit SlipClosing – Exit Slip Complete the 2 questions on the Complete the 2 questions on the

half sheet of paper and turn them in half sheet of paper and turn them in as you leave today. as you leave today.

Tonight’s HWTonight’s HWComplete questions 1-2 about Complete questions 1-2 about

Marine Food Webs on p. 456. Marine Food Webs on p. 456.

Vocabulary Book DirectionsVocabulary Book Directions Fold about 5 pieces of paper in half and Fold about 5 pieces of paper in half and

staple them.staple them. Write a creative title such as, “The Write a creative title such as, “The

Vocabulary of Life” or whatever you choose Vocabulary of Life” or whatever you choose that describes your book.that describes your book.

For each word, write a definition and draw a For each word, write a definition and draw a picture of the word.picture of the word.– Complete the following list of words to begin Complete 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