EcologyWeek 2

LPA 2013-2014

Monday Objective

• I will explain relationships between matter cycles and organisms.

Monday Bell work

• Complete questions 1-3 on page 54 with complete sentences.

• Complete questions 1-2 on page 58 with complete sentences.

Reading Questions

Vocabulary Review

• Make sure you review the following terms from Middle School:– Gas– Liquid– Solid– Photosynthesis– Cellular Respiration

Vocabulary

Use the reading from last night to define the following terms:– Biogeochemical cycle– Fossil fuel

Notes

• Unlike energy, matter is not lost as it passes through an ecosystem.

• Matter is recycled– Biogeochemical cycles• Water cycle• Carbon cycle• Nitrogen cycle• Oxygen cycle

Notes

• The Water Cycle• Why is water important?– Write your answer in the top margin of page 52.

Notes

• “Food For Thought” at the bottom of page 52– Where does the water come from that is needed

by your cells?

Notes

• The Carbon Cycle• How do organisms obtain carbon?– Photosynthesis• Know the equation!

• The cycling of carbon dioxide in photosynthesis and cellular respiration are main components of the carbon cycle.

Notes

• How is carbon released to the atmosphere?– Cellular respiration– Transpiration– Burning of fossil fuels– Decomposition of organic matter

Notes

• Global Warming– Earth’s average temperature is slowing rising from

year to year.– Some scientists attribute this rise to increased

levels of CO2 in the atmosphere.

Activity

• On page 52, color the:– Gases – gray– Liquids – blue– Solids – white

• On page 56, use a colored pencil to trace Carbon’s path in the cycle.

Extension

• Complete the “Extension Activity” at the bottom of page 53 and top of page 54.

Monday Objective

• I will explain relationships between matter cycles and organisms.

Homework

• Draw the water and carbon cycles on separate papers.

• Read pages 59-65. Come to class prepared to share a question from your reading.

Tuesday Objective

• I will explain relationships between matter cycles and organisms.

Tuesday Bell work

• Complete questions 1 & 2 on page 62.

• Complete questions 1 & 2 on page 65.

Reading Questions

Vocabulary

Use the reading from last night to define the following terms:– Nitrogen fixation– Denitrification

Notes

• The Nitrogen Cycle– Important for proteins and DNA.

• In order for plants to make use of nitrogen, it must be transformed into molecules they can use.– Lightning– Nitrogen fixation– Released by decaying organisms

Notes

• Nitrogen fixation– On land:• Special nitrogen fixing bacteria transform the nitrogen

gas in the atmosphere into useful forms (ammonium).• These bacteria live in the roots of plants in the pea

family (legumes).

– In Water:• Special bacteria in water also “fix” nitrogen gas into

ammonium to be used by aquatic plants.

Notes

• Denitrification– Turning nitrate back into nitrogen gas.– Special “denitrifying bacteria” in the soil, swamps

and lakes– Take in ammonium and release nitrogen gas

Notes

• Why are the “Three Sisters” important?

Notes

• The Oxygen Cycle• Driven by PHOTOSYNTHESIS• The Ozone layer absorbs harmful ultraviolet

radiation.

Activity

• Use a colored pencil to trace Nitrogen’s path on page 60.

Extension

• View the videos from links on page 64.• Answer the questions 1-4 on page 64.

Tuesday Objective

• I will explain relationships between matter cycles and organisms.

Homework

• Draw the Nitrogen Cycle on a separate paper.• Read pages 66-68. Come to class prepared to

ask questions about your reading.

Wednesday Objective

• I will explain how limiting factors affect the amount of resources available to an ecosystem.

Wednesday Bell work

• Complete questions 6 & 7 on page 68.

Reading Questions

Vocabulary

Use the reading from last night to define the following terms:– Limiting factor– Carrying capacity

Notes

• Review graph on page 66. – Exponential growth– Logistic growth– Carrying capacity• Birth and death rates become stable

Notes

• An increase in resources = _____________ in birth rate and _____________ in death rate.

• A decrease in resources = _____________ in birth rate and _____________ in death rate.

Notes

• Limiting Factors– Food– Water– Shelter

Question

• How does water act as a limiting factor?– In Utah– In the Sahara Desert– In Alaska– In Washington DC– In Lake Powell

Extension

• View video link on page 68.• Complete questions 1-5 on page 68.

Wednesday Objective

• I will explain how limiting factors affect the amount of resources available to an ecosystem.

Homework

• Take the quiz on Mastery Connect

– 6th Period: 376782777

– 7th Period: 504690380

Thursday Objective

• I will simulate the Nitrogen cycle.

Bell work

• Write a paragraph describing the flow of nitrogen in an ecosystem.

Activity

• Review the Nitrogen Game introduction and procedures.

• Create the passports.

• Conduct the activity

• Answer the questions and write the conclusion.

Thursday Objective

• I will simulate the Nitrogen cycle.

Homework

• Finish the Nitrogen Game worksheets.

Friday Objective

• I will evaluate the effects of limiting factors on an ecosystem.

Bell work

• Write a paragraph describing how biogeochemical cycles can be limiting factors on an ecosystem.

Activity

• Review the Oh Deer, introduction and procedures.

• Obtain your materials.

• Conduct the activity and record your data.

• Answer the questions and write the conclusion.

Friday Objective

• I will evaluate the effects of limiting factors on an ecosystem.

Homework

• Finish the Oh, Deer worksheets.