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21 22 9/08/14 Flow of Matter and Energy 9/08/14 Starter: What did you have for dinner last night or...
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Transcript of 21 22 9/08/14 Flow of Matter and Energy 9/08/14 Starter: What did you have for dinner last night or...
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21 229/08/14
Flow of Matter and Energy 9/08/14
Starter: What did you have for dinner last night or breakfast today?
Practice: Answer the Following
flow of matter and energy
Application/Connection/: Notes
Connection: Mini Food Web
Exit:What do the arrows in a food web represent?
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Date Lecture/ Activity/ Lab Page8/27 Syllabus /Notebook Guidelines 1-28/27 Periodic Table/ Formula 3-48/27 Tools/ Measurement 5-68/27 Lab Report/ Investigations 7-88/27 Restroom passes/Homework Log 9-108/28 Testing a hypothesis 11-128/29 Levels of Organization 13-149/02 Symbiotic Relationships 15-169/03 Abiotic and Biotic Factors 17-189/4-5 Ecosystems Research and Poster 19-209/8 Flow of Energy 21-22
Table of Contents
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Agenda 1. Starter
2. Practice
3. Activity
4. Exit
Homework: Carbon and Nitrogen Cycles Web quest
due TODAY:
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Practice Answer the Following thinking about that you had for dinner or breakfast
1. Why do we eat food?
2. Does the food we eat also need energy?
3. Where does the food we eat get its energy?
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Application
Flow of Energy Notes
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6
Energy Flow Through an Ecosystem
Food Chains, Food Webs, Food Chains, Food Webs, Energy PyramidsEnergy Pyramids
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•Flow of energy Flow of energy begins with the begins with the SUN and SUN and PhotosynthesisPhotosynthesis
6CO2 + 6H2O + sunlight & chlorophyll C6H12O6 + 6O2
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PhotosynthesisPhotosynthesis•Chemical reaction where green Chemical reaction where green plants use plants use water & carbon dioxidewater & carbon dioxide to to store the store the sun’s energy in glucosesun’s energy in glucose
•ENERGY is stored in glucoseENERGY is stored in glucose
•Glucose is stored as starch in plantsGlucose is stored as starch in plants
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Organisms that Organisms that can make glucose can make glucose
during during photosynthesis photosynthesis
are calledare called PRODUCERS.
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Producers Producers use use most of the most of the energy they energy they
makemake for for themselves.themselves.
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Producers use Producers use cellular cellular
respirationrespiration to to supply the supply the
energy they energy they need to live.need to live.
copyright cmassengale
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12
CELLULAR CELLULAR RESPIRATION RESPIRATION is is
the chemical the chemical reaction that reaction that releases the releases the
energy in energy in glucoseglucose..
6O2 + C6H12O6 --> 6H2O + 6CO2 + energy
copyright cmassengale
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The The energy that is energy that is not used by not used by
producersproducers can be can be passed on to passed on to
organisms that organisms that cannot make their cannot make their
own energy.own energy.copyright cmassengale
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14
Organisms that Organisms that cannot make their cannot make their
own energy are own energy are called called
CONSUMERS.CONSUMERS.copyright cmassengale
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Consumers that Consumers that eat eat producersproducers to get energy: to get energy:
•Are first order (1st) or primary consumers
•Are herbivores (plant-eaters)
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MostMost of the of the energy the energy the
primary primary consumer consumer getsgets
from the from the producer is producer is used used by the by the consumer.consumer.
copyright cmassengale
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SomeSome of the of the energy energy movesmoves
into the into the atmosphere as atmosphere as
heat.heat.
copyright cmassengale
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Some energy in Some energy in the primary the primary consumer is consumer is
STOREDSTORED && not lost not lost to the atmosphere to the atmosphere
or used by the or used by the consumer itself.consumer itself.
This energy is This energy is
availableavailable for for another consumer another consumer
(predator).(predator).copyright cmassengale
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A Consumer that Eats A Consumer that Eats Another Consumer for Another Consumer for
Energy:Energy:•Is called a Is called a secondary or secondary or 2nd 2nd order consumerorder consumer
•May be a May be a carnivorecarnivore or a or a omnivoreomnivore
•May be a May be a predatorpredator
•May be a May be a scavengerscavenger
copyright cmassengale
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MostMost of the of the energy the energy the secondary secondary
consumer gets consumer gets from the from the primary primary
consumer is consumer is used by the used by the secondary secondary consumer.consumer.
copyright cmassengale
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SomeSome of the of the energy is lost energy is lost as as heatheat, but , but some energy some energy is stored and is stored and can can passed on passed on
to another to another consumer.consumer.
copyright cmassengale
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A consumer that eats a A consumer that eats a consumer that already consumer that already
ate a consumer:ate a consumer:
•Is called a Is called a 3rd order3rd order or tertiary consumeror tertiary consumer
•May be a May be a carnivore carnivore or a omnivoreor a omnivore
•May be a May be a predatorpredator
•May be a May be a scavengerscavengercopyright cmassengale
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Consumers that eat Consumers that eat producers & other producers & other
consumersconsumers
Are called Are called omnivoreomnivore
ssOmnivoreOmnivore
s eat s eat plantsplants and and
animalsanimalscopyright cmassengale
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Consumers that hunt Consumers that hunt & kill other & kill other
consumers are called consumers are called predators.predators.
The animals that are The animals that are hunted & killed are hunted & killed are
called called prey.prey.
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Consumers that eat Consumers that eat other dead other dead
consumers are called consumers are called
scavengersscavengerscopyright cmassengale
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Decomposers are organisms mostly bacteria or fungi like mold, mildew and mushrooms that feed on the tissues of dead organisms (producers or consumers) and return or recycle gases and nutrients to the environment.
copyright cmassengale
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The The transfer of energytransfer of energy from the from the sunsun to to producerproducer to primary consumer then to primary consumer then to higher order to higher order consumersconsumers can be shown in acan be shown in a FOOD FOOD
CHAIN.CHAIN.
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Food Chains Show Available Food Chains Show Available EnergyEnergy
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More Food ChainsMore Food Chains
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Another way Another way of showing of showing the transfer the transfer of energy in of energy in
an an ecosystem is ecosystem is
thetheENERGY ENERGY
PYRAMIDPYRAMIDcopyright cmassengale
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Energy Pyramids ShowEnergy Pyramids Show •Amount of available Amount of available energy energy decreasesdecreases for for higher consumershigher consumers
•Amount of available Amount of available energy energy decreasesdecreases down down the food chainthe food chain
•It takes a It takes a large large number of producersnumber of producers to to support a small number support a small number of primary consumersof primary consumers
•It takes a It takes a large large number of primary number of primary consumersconsumers to support a to support a small number of small number of secondary consumerssecondary consumers
copyright cmassengale
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32copyright cmassengale
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Food Webs:Food Webs:
•Are Are interconnectedinterconnected food chainsfood chains
•They show They show the the feedingfeeding relationships relationships in an in an ecosystemecosystem
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Connection
Complete a mini food web (use at least 6 of the pictures) with the following organisms on the next slide showing which way the energy flows
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21 229/08/14
Flow of Matter and Energy 9/08/14
Starter: What did you have for dinner last night or breakfast today?
Practice: Answer the Following
flow of matter and energy
Application/Connection/: Notes
Connection: Mini Food Web
Exit:What do the arrows in a food web represent?