Water UnitBy
Luanne LaRose and Kate Stanton
Virtual Molecular Dynamics Laboratory
Boston UniversitySummer 2002
Introduction to Unit
Connect the submicroscopic characteristics of water to the macromolecular phenomenaCombines teacher demos, wet labs and computer simulations to reinforce the properties of water
State Standards
Students will plan and conduct investigations in which conclusions are formed based on recorded qualitative and quantitative data.
Use evidence, apply logic, and construct an argument for conclusions based on reported data
State Standards (cont.)
Water is able to absorb large amounts of heat, so lakes and oceans stabilize air and land temperatures Water absorbs heat when it evaporates, allowing organisms to get rid of excess heat In the solid form, ice floats, preventing lakes and oceans from freezing solid
National Teacher Standards
Commitment to students and their learning (meeting state and national standards, always) Knowledge of subject matter and how to teach it to students (age appropriate) Responsible for managing and monitoring student learning (discussions, student feedback, assessments, observations) Think systematically about teaching practice and learn from experience (daily reflections on how the lessons progressed, improvements needed) Members of learning communities (invite parents, community members, and administrators on lab station days)
Placement in the Curriculum
Previous Topics
Strucutre of the Atom
Bonding
Next Topic
pHOrganic
compounds
Goals and Objectives
Students will be able to identify a water molecule.
Describe the shape and charges associated with the water molecule.
Relate and apply how the structure of water relates to the special properties of water.
Day 1: Structure of Water Molecule
Balloon and water stream demoExplanation of structure of waterBuilding a water moleculeCreating hydrogen bonds
Day 2 Computer Lab
Students use Water Simulate:
• Hydrogen bonding• Temperatures effect on H bonds
• Dissolving
Day 3 Lab Stations
Teacher sets up 12 different stations which demonstrate different properties of waterStudents rotate through several stations
Day 4 Density and Temperature
Demo of ice and water to introduce densityComputer simulation from WATER to show density of ice and liquid waterClass discussion and journal entries
Days 5, 6 & 7
Student will create their own lab station to demonstrate one or more property of water
Students will set up their station and then students will rotate through the station
Students will be assessed based on their journal entries and the lab they created
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