Chapter 4 (Pages 52-71) Matter and Energy in the Ecosystem

 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:______

______

2. Biomass:______

______

3. Consumer:______

______

4. Decomposer:______

______

5. EcologicalPyramid:______

______

______6. Evaporation:______

______

7. FoodChain:______

______

8. FoodWeb:______

______

9. Legume:______

______

10. Producer:______

______

11. Transpiration:______

______

12. TrophicLevel:______

______

______ 4.1 Roles of Living Things

 All ______

 In ecosystem______:

 ______

 Energy ______

 Organisms ______:

 ______

 Producers

 Producers: ______

 Produce ______

 Examples: ______

 Consumers

 Consumers: ______

 Must ______

 4 ways consumers gather food:

 1.______

 2. ______

 3.______

 4.Scavengers ______

 Herbivores: ______

 Examples: ______ Carnivores: ______

 Omnivores: ______

 Scavengers: ______

 Decomposers

 Decomposers: ______

 Trophic Levels

 Trophic Level: ______

 ______

 Producers

 ______

 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?

______

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?

______

 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: ______

 ______

 Food Web: ______

 ______

 Biological Magnification  Humans ______

 This is ______

 ______

 Biological Magnification: ______

1. What are food chains and food webs and how are they related?

______

2. Explain the process of biological magnification.

______

-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: ______

______

 Much ______

 ______

 Ecological Pyramids

 Ecological Pyramid: ______

 ______

 Growth ______

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:

 ______

 Evaporation: ______

 Transpiration: ______

 Condensation: ______

 Precipitation: ______

 Runoff: ______

______

 Carbon Cycle

 Movement ______

 Photosynthesis______

 ______

 Ocean ______ Nitrogen Cycle

 Organisms ______

 Movement ______

 Steps:

 ______

1. What are the four most common elements in the human body?

______

2. How do transpiration and evaporation differ?

______

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?

______