1. across the top of a sheet of paper, list the different types of foods you ate for dinner last...
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1. Across the top of a sheet of paper, list the different types of foods you ate for dinner last night.
2. Under each item, write the name of the plant, animal, or other organism that was the source of that food. Some foods have more than one source.
POD # 19 Where did your dinner come from?
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Ecosystems and Biomes
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1. Three energy roles?
Producers Consumers Decomposers
Ecosystems and Biomes
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2. Producers?Autotrophs3. Consumers and
decomposersHeterotrophs
Ecosystems and Biomes
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4. What’s the difference? Herbivores eat only
plants Carnivores eat only
animals Omnivores eat both
plants and animals Scavengers feed on
the bodies of dead organisms
Ecosystems and Biomes
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1. What is the difference between a food web and a food chain?
2. What are the 3 energy roles organisms have in an ecosystem?
3. Create a food chain that goes to a second level consumer.
POD # 20 Food Web and Food Chain
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5. Food chain? Movement of
energy through an ecosystem
Begins with producers
Food chain is specific
Ecosystems and Biomes
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6. Diagram pgs 712-713
7. Food web: Movement of energy
through an ecosystem
Many overlapping food chains
Ecosystems and Biomes
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Bill Nye the Science Guy - "It's The Food Web" - YouTube
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8. Energy Pyramid?
It shows how energy decreases at higher levels of a food web
Ecosystems and Biomes
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9. Eating the Sun? Producers (autotrophs)
convert the sun’s energy
You either eat the producers
Or you eat the animals that eat the producers
Ecosystems and Biomes
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Complete the Energy- Role walk activity on page 715. List 20 producers, consumers, and decomposers that you see. Create a list of the organisms and their energy roles. For each consumer, try to classify it further according to what it eats and its level. Then draw a energy pyramid for at least one food chain. This is a QUIZ grade!!!
Home Work
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1. What are the three forms of water?2. What does evaporation mean, give an
example?3. What is the difference in condensation
and Precipitation?4. What is groundwater?5. The suffix –ion means action or process,
explain why that would be important with the water cycle. (look at key words)
POD #21 Water Cycle
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Evaporation: water changes to water vapor (gas)
Condensation: water vapor rises, cools, and turns back to liquid
10. The Water Cycle?
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Precipitation:The water vapor
droplets grow larger and larger until they fall back to Earth
http://phschool.com/webcodes10/index.cfm?wcprefix=cfp&wcsuffix=4024&area=view&x=13&y=11
10. The Water Cycle?
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Glacier, stream, ocean, cloud, stream, animal, cloud, glacier, ocean
“I was a lonely water molecule frozen in a glacier on top of a mountain. When the spring came and the ice thawed, I melted into a stream. Down the mountain, the stream roared going over large boulders. After the long journey I reached the ocean.”
Water molecule story…
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1. What organisms only eat plants?a. producersb. consumersc. decomposers d. herbivores2. What organisms get their energy by releasing chemicals onto
another organism and then soaking it into their bodies? a. producersb. consumersc. decomposers d. herbivores3.What organisms are able to produce their food?a. producersb. consumersc. decomposers d. herbivores4. What organisms must take in other organisms to get energy?
a. producers b. consumersc. decomposers d. herbivores
5.What organisms eat both plants and other animals?a. producersb. carnivores c. omnivores d. herbivores6.Where is the largest amount of energy found on an energy
pyramid?a. top b. middle c. bottom d. each level is the same
POD # 22 Energy flow review
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11. Forest fires? During fires, lots of
CO2 are released into the air
Fire leaves fewer trees to absorb the CO2
Too much CO2 warms the atmosphere
Ecosystems and Biomes
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12. How humans affect cycles.
Burning fuel and clearing forested land raises CO2
Lowers oxygen levels in the air
Ecosystems and Biomes
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13. How does nitrogen get returned?
Bacteria release nitrogen into the air
Decomposers break down wastes and remains returning them to the soil
Ecosystems and Biomes
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14. Nitrogen-fixing bacteria?
Live in nodules on the roots of plants
15. Biogeography?The study of where
organisms live
Ecosystems and Biomes
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16. Continental Drift? Millions of years
ago, the continents drifted apart
The continents drifted based on tectonic plates
http://phschool.com/webcodes10/index.cfm?wcprefix=cfp&wcsuffix=1015&area=view&x=11&y=11
Ecosystems and Biomes
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17. Organism dispersal?Wind, water, or other living
things, including humans18. Limits to dispersal? Physical barriers
(mountains) Competition Climate
Ecosystems and Biomes
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19. Mountain climate change?
At the base it is warm and dry
At the top it is cold and windy
Ecosystems and Biomes
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20. Biomes? A group of land
ecosystems with similar climates and organisms
Climate, temperature, and precipitation
Ecosystems and Biomes
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21. Map on page 729?Along the equator22. Giant Redwood trees Northwest coast of the
U.S. Temperate rain forests
Ecosystems and Biomes
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23. Canopy and Understory?
Canopy is the leafy roof of tall trees
Ecosystems and Biomes
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23. Canopy and Understory?
The understory is the second layer of shorter trees and vines under the canopy
Ecosystems and Biomes
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24. Desert climate conditions? Usually hot/dry during the
day Cooler at night Receiving less than 25 cm
of rain per year
Ecosystems and Biomes
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Prairie: A grassland that receives more
rain than a desert, but not enough to grow trees
25. Savannas vs. Prairies?
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Savanna:A grassland that receives more
rain than prairies with scattered shrubs and small trees
25. Savannas vs. Prairies?
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26. Deciduous forests? Receives less rainfall than
rain forests Temperatures vary by
season Trees shed their leaves
Ecosystems and Biomes
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27. Map on page 734?
Cold winters Coniferous
trees Found in on the
northern parts of the northern hemisphere
Ecosystems and Biomes
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28. Permafrost?Soil that is frozen all
year long
Ecosystems and Biomes
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Arctic Tundra:The extremely cold, dry
part of the arctic
29. Arctic Tundra vs. Alpine Tundra
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Alpine Tundra:The icy, windy tops of
mountains
29. Arctic Tundra vs. Alpine Tundra
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30. Freshwater ecosystem?
Freshwater ecosystems include streams, rivers, ponds, and lakes
Marine ecosystems are salt-water and part of the ocean
Ecosystems and Biomes
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31. Estuary:Where fresh river water
meets the ocean’s salt water
Ecosystems and Biomes
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31. Intertidal Zone: On the shore, between
the highest tide line and the lowest tide line
See page 738
Ecosystems and Biomes
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31. Neritic Zone: The area from the low-
tide line out to the continental shelf
See page 738
Ecosystems and Biomes
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31. Oceanic Zone: Out over the open
ocean From the surface down
as deep as light penetrates
See page 738
Ecosystems and Biomes
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31. Benthic zone: Over open ocean From just below the
surface zone to the ocean floor
No light penetrates See page 738
Ecosystems and Biomes