Week of April 17 - 23

Date	Classwork	Eval	Homework	Assessment Criteria
April 17	Explain Part II Pgs 727 - 733, p/p 1 - 6		Page 733 R/C 1-3	) Describe the transfers and transformations of matter and/or energy in an ecosystem (e.g., sunlight transforms to chemical energy during photosynthesis, chemical energy and matter are transferred when animals eat plants or other animals, carbon dioxide produced by animals and plants during respiration is used by plants and transformed to glucose during photosynthesis, decomposition of organisms produces carbon dioxide).
20	Nitrogen Cycle		Click on PR tab on website	Describe the cycle of nitrogen through ecosystems (e.g., nitrogen in air is taken in by bacteria in soil, then made directly available to plants through the soil or to the plants through animal waste, and returned to the soil and atmosphere when the plants decompose).
21	Elaborate, page 727 - 742 p/p 1 - 6		Page 743, R/C 1 - 2	Explain how a change to a factor (e.g., matter, energy, space, predatory, or competing organisms) would limit the population of a species.
22/23	Kah Tai Field Trip - design field investigation		Field Investigation	Describe a plan to answer a given question for a field study with the following attributes:  Method for collecting data (controlled variable)  Conditions to be compared (independent/manipulated variable)  Data to be collected (dependent/responding variable)  Data to be gathered and recorded from multiple observations  Environmental conditions recorded  Logical steps

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HS-LS2-4.

Use mathematical representations to support claims for the cycling of matter and flow of energy among organisms in an ecosystem.