Food Chains and the Organisms in them!!!!! Copyright 2014-all rights reserved-

Food Chains and Food Chains and the Organisms in the Organisms in them!!!!!them!!!!!

Copyright 2014-all rights reserved-www.cpalms.org

DO NOW!!!! Energy Flow DO NOW!!!! Energy Flow DominoesDominoes

1.1. Get into groups of 4.Get into groups of 4.

2.2. Each group will receive a set of Energy Flow Dominoes.Each group will receive a set of Energy Flow Dominoes.

3.3. Each member is to have 5-6 dominoes.Each member is to have 5-6 dominoes.

4.4. Whoever has the Whoever has the ““StartStart”” domino places it down first and reads domino places it down first and reads the clue on the table. The person with the answer places it down the clue on the table. The person with the answer places it down next to the clue.next to the clue.

5.5. Continue until there are no more pieces left.Continue until there are no more pieces left.

6.6. The The ““StopStop”” domino should be at the end!!!! If it domino should be at the end!!!! If it’’s not go back you s not go back you did something wrong!!!!!did something wrong!!!!!


1. How Organisms Get 1. How Organisms Get Matter and EnergyMatter and Energy

-The ultimate source of the energy for -The ultimate source of the energy for life on earth is the life on earth is the sunsun..

--EnergyEnergy is the ability to cause change. is the ability to cause change.


-Matter and energy flow (move) through the -Matter and energy flow (move) through the environment in cycles.environment in cycles.

-Animals and plants depend on these -Animals and plants depend on these cycles to get the food and nutrients they cycles to get the food and nutrients they need to survive.need to survive.

-There are 2 main categories of organisms -There are 2 main categories of organisms in the environment; autotrophs and in the environment; autotrophs and heterotrophs.heterotrophs.


2.2. HeterotrophsHeterotrophs are consumers; they are consumers; they must eat to get food.must eat to get food.

Ex: Lions, Humans, Rabbits.Ex: Lions, Humans, Rabbits.


1.1. AutotrophsAutotrophs are producers; they make are producers; they make their own food through a process called their own food through a process called photosynthesis.photosynthesis.

Ex: Trees, plants, algae.Ex: Trees, plants, algae.


10% Rule10% Rule

When one animal feeds off another, only When one animal feeds off another, only about 10% of the available energy is about 10% of the available energy is transferred. transferred. There is a loss of energy in the form of There is a loss of energy in the form of

heat heat in the process.in the process. Additional Additional loss of energy loss of energy occurs during occurs during

respiration and movement of the respiration and movement of the organisms before they are eaten. organisms before they are eaten.

More and More and more energy is lost more energy is lost as one as one moves up through trophic levels.moves up through trophic levels.

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Trophic LevelTrophic Level A trophic level is each level in a food A trophic level is each level in a food

chain. chain.

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1st Trophic Level

2ND Trophic Level

3rd Trophic Level

Trophic LevelsTrophic Levels First trophic level First trophic level = producers(autotrophs)= producers(autotrophs) Second trophic level Second trophic level = primary = primary

consumer(heterotrophs)consumer(heterotrophs) Third trophic level Third trophic level = secondary = secondary

consumer(heterotrophs)consumer(heterotrophs) Fourth trophic level Fourth trophic level = tertiary = tertiary

consumer(heterotrophs)consumer(heterotrophs)

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Food ChainFood Chain A food chain is the series of organisms A food chain is the series of organisms

showing feeding relationships. A food chain showing feeding relationships. A food chain usually begins with a green plant (producer) usually begins with a green plant (producer) which is eaten by an animal (consumer). which is eaten by an animal (consumer). The arrow means 'is eaten by', and The arrow means 'is eaten by', and shows the flow of energy along the food shows the flow of energy along the food chain. chain.

1010Producer -> Consumer 1 -> Consumer 2 -> Consumer 3 ->

Herbivore Carnivore Carnivore


Food WebFood Web

A network of A network of interrelated interrelated food chains food chains in a given in a given

areaarea

1111


CHECKPOINT CHECKPOINT QUESTIONS!!!!!!QUESTIONS!!!!!!


Is this organism a autotrpoh or heterotroph?Is this organism a autotrpoh or heterotroph?If itIf it’’s a heterotroph what type of consumer is it?s a heterotroph what type of consumer is it?Which trophic level is it in? Which trophic level is it in?

HeterotrophHeterotroph

CarnivoreCarnivore

33

Its eating a primary Its eating a primary consumer.consumer.


Is this organism a autotrpoh or heterotroph?Is this organism a autotrpoh or heterotroph?If itIf it’’s a heterotroph what type of consumer is it?s a heterotroph what type of consumer is it?Which trophic level is it in? Explain why.Which trophic level is it in? Explain why.

HeterotrophHeterotroph

DecomposerDecomposer

22

It is consuming a dead It is consuming a dead producerproducer


Is this a autotrpoh or heterotroph?Is this a autotrpoh or heterotroph?If itIf it’’s a heterotroph what type of consumer is it?s a heterotroph what type of consumer is it?Which trophic level is it in? Explain why.Which trophic level is it in? Explain why.

AutotrophAutotroph

1 1

It makes it own food It makes it own food and is eaten by and is eaten by consumers.consumers.


Is this organism a autotrpoh or heterotroph?Is this organism a autotrpoh or heterotroph?If itIf it’’s a heterotroph what type of consumer is it?s a heterotroph what type of consumer is it?Which trophic level is it in? Explain why.Which trophic level is it in? Explain why.

heterotroph-heterotroph-

HerbivoreHerbivore

22

It is eating a producer.It is eating a producer.


Identify the possible food chains and the organisms on each Identify the possible food chains and the organisms on each trophic levels.trophic levels.

We DoWe Do– – WE ARE ALL CONNECTED WE ARE ALL CONNECTED

Everyone will receive an organism and a task card for that organism. You Everyone will receive an organism and a task card for that organism. You will have 10-15 minutes to research the organisms answering the will have 10-15 minutes to research the organisms answering the following questions.following questions.

Independent Organism Research Question.Independent Organism Research Question. 1. What type of organism am I? (producer,consumer,decomposer)1. What type of organism am I? (producer,consumer,decomposer) 2. Who are my natural predators?2. Who are my natural predators? 3. How do I obtain energy?3. How do I obtain energy? 4. What is my natural habitat?4. What is my natural habitat?


WE ARE ALL CONNECTEDWE ARE ALL CONNECTED

1.1. Each student will have their organism taped to their shirt.Each student will have their organism taped to their shirt.

2.2. Each student stands in a circle and introduce yourself as the plant or animal you Each student stands in a circle and introduce yourself as the plant or animal you represent. represent.

3.3. The student with the sun picture should stand in the center of the circle.The student with the sun picture should stand in the center of the circle.

4.4. The ball of yarn represents the energy flow in this ecosystem. As each student The ball of yarn represents the energy flow in this ecosystem. As each student throws the yarn ball, he/she will explain the transfer of energy that took place throws the yarn ball, he/she will explain the transfer of energy that took place using essential vocabulary and the 10% rule using 1000 kJ as the starting point.using essential vocabulary and the 10% rule using 1000 kJ as the starting point.

5.5. The student representing the sun holds on to the end of the yarn and tosses the The student representing the sun holds on to the end of the yarn and tosses the ball of yarn to someone who can use that energy.ball of yarn to someone who can use that energy.

6.6. When a student receives the ball of yarn, he or she should hold a piece of the yarn When a student receives the ball of yarn, he or she should hold a piece of the yarn and throw the ball to someone else that could use the energy.and throw the ball to someone else that could use the energy.

7.7. When the yarn reaches a carnivore, break it off. When the yarn reaches a carnivore, break it off. This represents a food chain.This represents a food chain.

8.8. Toss the yarn to the sun to start another food chain. Continue making chains until Toss the yarn to the sun to start another food chain. Continue making chains until every classmate holds at least one strand of yarnevery classmate holds at least one strand of yarn..


You DoYou Do Question the followingQuestion the following

1.1. How many How many food chainsfood chains did we create? How many did we create? How many food websfood webs did we did we create? Explain the difference.create? Explain the difference.

2.2. Why is a food web a more complete picture of the feeding relationships in Why is a food web a more complete picture of the feeding relationships in an ecosystem than a food chain?an ecosystem than a food chain?

3.3. Identify and describe an ecosystem in or around your home. List all the Identify and describe an ecosystem in or around your home. List all the biotic and abiotic factors interacting there and explain how you think they biotic and abiotic factors interacting there and explain how you think they affect each other.affect each other.


SourcesSources

http://www.mlms.loganschools.org/~mlowe/SPEDS2O2B.htmlhttp://www.mlms.loganschools.org/~mlowe/SPEDS2O2B.html http://en.wikipedia.org/wiki/Rabbithttp://en.wikipedia.org/wiki/Rabbit http://www.annarbor.com/entertainment/food-drink/wildcrafting-the-lowly-dandelion---http://www.annarbor.com/entertainment/food-drink/wildcrafting-the-lowly-dandelion---

let-it-live-until-you-eat-it/let-it-live-until-you-eat-it/ http://king.portlandschools.org/files/houses/y2/animalmaineia/files/species/http://king.portlandschools.org/files/houses/y2/animalmaineia/files/species/

rnpheasantkh/foodweb/foodweb.htmlrnpheasantkh/foodweb/foodweb.html

http://www.clipartbest.com/free-clip-art-of-the-sunhttp://www.clipartbest.com/free-clip-art-of-the-sun http://www.thefeaturedcreature.com/2010/08/red-fox-on-stilts-no-just-maned-wolf.htmlhttp://www.thefeaturedcreature.com/2010/08/red-fox-on-stilts-no-just-maned-wolf.html http://igutek.scripts.mit.edu/terrascope/?page=Algaehttp://igutek.scripts.mit.edu/terrascope/?page=Algae http://en.wikipedia.org/wiki/Harris's_hawkhttp://en.wikipedia.org/wiki/Harris's_hawk

http://www.clipartpanda.com/categories/trees-clipart-freehttp://www.clipartpanda.com/categories/trees-clipart-free

http://www.mycutegraphics.com/graphics/cow/cow-with-black-spots.htmlhttp://www.mycutegraphics.com/graphics/cow/cow-with-black-spots.html

http://www.corbisimages.com/stock-photo/rights-managed/64670/giraffe-eating-acacia-leaveshttp://www.corbisimages.com/stock-photo/rights-managed/64670/giraffe-eating-acacia-leaves http://ianflynn.deviantart.com/art/Mushrooms-growing-out-of-a-dead-tree-371060532http://ianflynn.deviantart.com/art/Mushrooms-growing-out-of-a-dead-tree-371060532

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Food Chains and the Organisms in them!!!!! Copyright 2014-all rights reserved-