Learning+Experience+3+Round+and+Round+They+Go

Prologue page 514: Read aloud to set the context for learning.

 * Where does matter and energy come from and go in an ecosystem?
 * Cycles --> matter gets reused
 * Flow --> energy moves in one direction from useful to useless.

//Going with the Flow// pages 515-516

 * Have graph paper available
 * Many students don't anticipate that one level starts with the one before it/ walk around and monitor how students are doing with this concept.

//It's Elemental// pages 516 - 517

 * performed if we have time and a good source of **snails** and **//Anacharis;//** these can be ordered from Carolina Biological

//An Infinite Loop// pages 518-520

 * Focus questions at start of class: For each of these biomolecules; //What kinds of atoms and what kind of arrangement of atoms does each have? What chemical properties does it have? What is a food item that contains a large amount of this compound? What is one use for these molecules in cells? ** Carbohydrates, Lipids, Proteins, Nucleic Acids **//
 * Read introduction out-loud (page 518)
 * Divide students into groups of 3; Give one person for each group, a color piece of paper (one different color each, for Carbon, Nitrogen, Water Cycles)
 * Procedure: Separate all the Carbon-Oxygens into one group, all the N into another, and finally all the Water's into another.
 * Create a labeled, full-page size diagram that shows
 * All Biotic and Abiotic factors or features of the movement and storage of this/these elements
 * **Reservoirs in the environment** (Atmosphere, Soil, Biomass, Ocean, etc.)
 * **Processes** that move the element (show with labeled arrows)
 * **Molecular forms** of the element (CO2, O2, H2O, NO3-, N2, etc.)
 * **Biological Uses**