Objective: I will be able to diagram and explain the biogeochemical cycles of an ecosystem. Agenda: Biogeochemical cycle notes (pg. 67) STAR pg. 66 Homework:

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Objective: I will be able to diagram and explain the biogeochemical cycles of an ecosystem. Agenda: Biogeochemical cycle notes (pg. 67) STAR pg. 66 Homework: Study for Test on Friday (Biogeochemical Cycles and Carbon Sink) Monday, November 30 th

 The continuous flow of elements & compounds between organisms & the earth  Nutrients- inorganic substances that organisms require to live  Organic substances break down through decomposition leaving behind inorganic substances eventually brought to surface by upwelling.

 Fundamental element (carbon is in all living things)  Carbon forms the basis for chemical energy and for building tissues.  Carbon dioxide gas dissolves into the ocean (a CO 2 storage tank “Carbon Sink”)  Decomposition of organisms releases it  Calcium carbonate  Much is concentrated in the deep sea  Major contributor to global warming

 Required by organisms for proteins, chlorophyll, and nucleic acids.  Must be converted to a usable form by bacteria  Ammonia  Nitrates  Nitrites  Nitrogen gas

 Used in the ATP/ADP cycle (Energy)  Part of DNA  Makes up bones & teeth when combined with calcium carbonate  Fertilizer

 Silicon exists as silicon dioxide aka silica.  Used by diatoms and radiolarians (types of plankton) to build shells and skeletons.  Most sand is silica due to its abundance in rocks and resistance to being broken down completely.

1. Which gas needs to be converted by bacteria before we can use it? 2. How do organisms use nitrogen? 3. Why is phosphorous essential to life? 4. Why is Silicon important to some marine organisms?

 Ocean Acidification: Alliance for Climate Education Ocean Acidification: Alliance for Climate Education  Acid Test Video Acid Test Video

Objective: I will be able to identify toxic substances that accumulate in aquatic systems, such as ammonia, nitrates, etc. Agenda:  Acid TestAcid Test  Come for Office Hours tomorrow during the first half of lunch to better your grade Homework: Study for test Friday 12/4 (Biogeochemical cycles and Carbon Sink Tuesday, December 1st

Objective: I will be able to identify toxic substances that accumulate in aquatic systems, such as ammonia, nitrates, etc. Agenda:  Review for 5.1 Test Homework: Study for test Friday 12/4 (Biogeochemical cycles and Carbon Sink Tuesday, December 2 nd

Objective: I will be able to identify toxic substances that accumulate in aquatic systems, such as ammonia, nitrates, etc. Agenda:  Review for 5.1 Test Homework: Study for test tomorrow (Biogeochemical cycles and Carbon Sink Thursday, December 3 rd

Objective: I will be able to identify toxic substances that accumulate in aquatic systems, such as ammonia, nitrates, etc. Agenda:  5.1 Test Homework: None Friday, December 4 th