Ecology Week 2 LPA

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 CO 2 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 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 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 – 6 th Period: – 7 th Period:

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.