Chapter 4 (pages 52-71) Matter and Energy in the Ecosystem
1. READ chapter 4 (pgs 52-71) in the text book. 2. Define the Vocabulary:
Chapter 4 Vocabulary
1. BiologicalMagnification:______
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2. Biomass:______
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3. Consumer:______
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4. Decomposer:______
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5. EcologicalPyramid:______
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______6. Evaporation:______
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7. FoodChain:______
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8. FoodWeb:______
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9. Legume:______
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10. Producer:______
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11. Transpiration:______
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12. TrophicLevel:______
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______ 4.1 Roles of Living Things
All ______
In ecosystem______:
______
Energy ______
Organisms ______:
______
Producers
Producers: ______
Produce ______
Examples: ______
Consumers
Consumers: ______
Must ______
Examples: ______
4 ways consumers gather food:
1.______
2. ______
3.______
4.Scavengers ______
Herbivores: ______
Examples: ______ Carnivores: ______
Examples: ______
Omnivores: ______
Examples: ______
Scavengers: ______
Examples: ______
Decomposers
Decomposers: ______
Trophic Levels
Trophic Level: ______
______
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Producers
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Consumers
______
Check for Understanding:
1. List the different groups of organisms in an ecosystem, and explain how each type gathers food. ______
2. How do autotrophs and heterotrophs differ?
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3. In most ecosystems, the first trophic level contains more organisms than the second trophic level. Can you suggest a reason that explains this pattern?
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In your journal:
-Make a list of 10 organisms (living things) you saw on your way to school today.
-Label each one as a producer, consumer, or decomposer.
-For Homework – complete review worksheet 4.1.
4.2 Ecosystem Structure
Producers ______
Changes ______
Food Chain: ______
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Food Web: ______
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Biological Magnification Humans ______
This is ______
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Biological Magnification: ______
Check for Understanding:
1. What are food chains and food webs and how are they related?
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2. Explain the process of biological magnification.
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-Homework – complete review worksheet 4.2
Class Activity
-Food Chain Stackers
Case Study
-Read “DDT in an Aquatic Food Chain” and answer questions in journal.
-Complete vocabulary words
4.3 Energy in the Ecosystem
Energy ______
______ Energy ______
No ______
Amount ______
Energy and Food
Producers ______
Energy ______
Biomass: ______
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Much ______
______
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Ecological Pyramids
Ecological Pyramid: ______
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Growth ______
Check for Understanding:
1. How much of the energy that appears in one trophic level will appear in the next? ______
2. What is an ecological pyramid?
______
3. Where is energy lost between trophic levels? Where does this energy ultimately go?
______
Class Activity
-Ecological Pyramid
Lab Activity
Student Exploration: Food Chain
a.)PRIOR KNOWLEDGE to prepare you for the computer lab.
b.)HYPOTHESIS about predators and prey
c.) PREDICT the changes you will see in the experiment.
d.) TEST your hypothesis
e.) CONCLUSION answer the 2 questions
4.4 Chemical Cycles
Most important elements: ______
Elements ______
Three important cycles:
1. ______
2. ______ 3. ______
Water Cycle
Movement ______
Parts of the water cycle:
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Evaporation: ______
Transpiration: ______
Condensation: ______
Precipitation: ______
Runoff: ______
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Carbon Cycle
Movement ______
Photosynthesis______
______
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Ocean ______ Nitrogen Cycle
Organisms ______
Movement ______
Steps:
______
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Check for Understanding:
1. What are the four most common elements in the human body?
______
2. How do transpiration and evaporation differ?
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3. Humans are releasing large amounts of carbon dioxide into the air by burning fossil fuels like coal and oil. What effect might this carbon have on the carbon cycle?
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