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Demonstrate The Phenomenon Of Hydrophilic Polymers That Can Absorb Several Hundred Times Their Own Weight In Water. For The First Demo, Students Observe Hydration Of Powdered Sodium Polyacrylate. In The Second Demo, Students Observe Hydration Of A Type Of Sodium Polyacrylate Particle That Has A Great Deal Of Molecular Cross-Linking. The Third Demo Demonstrates How Polyacrylamide Crystals Absorb Water Slowly And Swell Into Transparent, Irregular Solids. Students Demonstrate Their Learning By Writing Formulas And Modeling How Polymer Utilizes Hydrogen Bonding For Water Absorption.Time Requirementtotal, 35 Minutes. Ter Prep, 10 Minutes. Hydration Of Sodium Polyacrylate, 10 Minutes. Hydration Of Sodium Polyacrylate (Snow Polymer), 5 Minutes. Hydration Of Polyacrylamide, 10 Minutes.Digital Resourcesincludes 1-Year Access To Digital Resources That Support 3-Dimensional Instruction For Ngss. Digital Resources May Include A Ter Manual And Student Guide, Pre-Lab Activities And Setup Videos, Phenomenon Videos, Simulations, And Post-Lab Analysis And Assessments.Performance Expectationshs-Ps2-6Crosscutting Conceptsstructure And Functiondisciplinary Core Ideasps2.B: Types Of Interactionsscience And Engineering Practicesdeveloping And Using Modelsobtaining, Evaluating, And Communicating Informationlearning Objectivesdraw Structural Formulas For Monomers Of Sodium Polyacrylate And Polyacrylamide.Illustrate Hydrogen Bonding With Water For Molecule.Brainstorm And Record Practical Applications For These Water-Absorbent Polymers.Prerequisite Knowledge And Skillsstudents Should Be Familiar With Ionic, Covalent, And Hydrogen Bonding; And Have An Understanding Of Polar And Nonpolar Molecules And Hydrophobic Versus Hydrophilic Compounds.(M)Sds - Acrylamide/Potassium Acrylate Coploymer, Crosslinked(M)Sds - Sodium Polyacrylate Chemonstrations: Super Water-Absorbent Polymers: Sample Ter'S Manual
