middle school matters: modeling with magnetic water molecules · 2019. 4. 15. · workshop learning...
TRANSCRIPT
-
Middle School Matters: Modeling
with Magnetic Water Molecules
-
WORKSHOP LEARNING OBJECTIVES
Educators attending this workshop will:o Support the NGSS student learning outcomes of three dimensional lesson
design utilizing the following instructional materals:
o Water Kit© to model the polar nature of water, solubility, and the
water cycle
o Learn something new and interesting that is for your own professional
development.
o HAVE FUN!
-
WORKSHOP LEARNING OBJECTIVES
What NGSS dimensions will be targeted?
SEPs CCCs DCIsAsking questions and
defining problems
Patterns PS1.A: Structure and
properties of matter
Developing and using
models
Cause and effect LS1.A: Structure and function
Constructing
explanations and
designing solutions
Systems and system
models
LS1.C: Organization for matter
and energy flow in organisms
Engaging in argument
from evidence
Structure and function ESS2.C: The roles of water in
earth’s surface processes
-
ENGAGE WITH THE WATER CUP
Spill your water cup!
-
EXPLORE THE WATER CUP
1. Show me your idea of the physical representation of
water from the cup.
2. What criteria did you use to determine which model
represents a water molecule?
3. What color represents the oxygen? hydrogen?
4. Other observations?
5. I wonder. . . . .
-
EXPLAIN THE WATER CUP
Water is POLAR!
classconnection.s3.amazonaws.com
-
EXPLAIN WATER PROPERTIES
Results in hydrogen bonding between water molecules!
2014 Pearson Education, Inc.
-
LIQUID
EXPLAIN: THE PHASES OF WATER!
-
GAS
EXPLAIN: THE PHASES OF WATER!
-
SOLID
BUT . . .
EXPLAIN: THE PHASES OF WATER!
-
A discrepant event! Why does solid water float in liquid water?
SOLID WATER IS PECULIAR!
scienceabc.com
-
Approximately18 different forms of ice have been identified!
SOLID WATER IS PECULIAR!
http://www.linearwater.com/water.html
-
REMEMBER THAT HYDROGEN BONDING?
Hydrogen bonding has implications for the formation of
different ice crystal structures.
2014 Pearson Education, Inc.
-
• BUILDING CUBIC ICE
Step 1 Step 2
ICE ICE BABY!
-
• BUILDING CUBIC ICE
Step 3 Step 4
ICE ICE BABY!
-
• COMPLETED CUBIC ICE MODEL
ICE ICE BABY!
-
• FLIP THE CUBIC ICE MODEL
ICE ICE BABY!
-
• TRANSITION FROM CUBIC ICE TO HEXAGONAL ICE
MORE ICE ICE BABY!
-
• FOR HEXAGONAL ICE
• BUILD TWO RINGS,
• TURN 180O
MORE ICE ICE BABY!
-
• AND STACK!
MORE ICE ICE BABY!
-
BUILD A SNOWFLAKE!
-
Why does it matter?
SO WHAT, ICE FLOATS ON LIQUID WATER. . .
What would happen to a lake’s ecosystem if ice sank and the lake froze
from the bottom up?
http://www.wbur.org/hereandnow/2014/02/07/ice-fishing-milwaukee http://michiganradio.org/post/possible-signs-asian-carp-found-near-lake-michigan
-
WHAT IMPACT DOES DECLINING AMOUNTSOF SEA ICE HAVE?
http://nca2014.globalchange.gov/report/our-changing-
climate/melting-ice
https://chriscolose.wordpress.com/2008/09/09/on-the-arctic-sea-ice/
-
WOW! THERE’S A LOT OF SPACE IN THERE!
-
FURTHER APPLICATIONS
ELABORATE: VOLUME
http://mygoodplanet.com/self-repairing-roadways/ https://geographyclassroom2014.weebly.com/weathering.html
-
EXPLAIN: DENSITY
https://www.nyu.edu/pages/mathmol/textbook/info_water.html
-
DEMONSTRATE DENSITY DIFFERENCES
EXPLAIN: DENSITY
-
EVALUATE: WHY DOES ICE FLOAT?
scienceabc.com
-
ENGAGE: SOLUBILITY
What happens when salt
dissolves in water?
https://infograph.venngage.com/p/89106/solutions
-
EXPLORE: SOLUBILITY
Using Models to Explore the Phenomenon
-
EXPLAIN: SOLUBILITY
Using Models to Explain the Phenomenon
-
ELABORATE: SOLUBILITY
All models are wrong – some models are useful!
Salt is not a molecule but
rather an ionic compound.
-
• Does this molecule
interact with the water
molecules?
• ETHANE
• HYDROPHOBIC
EXPLAIN: SOLUBILITY
-
MOLECULAR MANIPULATION
EXPLAIN: SOLUBILITY
-
• ETHANOL!
• Does this molecule
interact with water
molecules?
• HYDROPHILIC
EXPLAIN: SOLUBILITY
-
The hydrogen atom in the alcohol group of ethanol will form a hydrogen bond with the oxygen in a water molecule.
EXPLAIN: SOLUBILITY
-
ELABORATE: THE WATER CYCLE
http://www.printablediagram.com/the-water-cycle-diagrams/
-
WATER RUNOFF,POLLUTION, AND EROSION
• Water is a major agent in changing
the Earth’s landscape.
• Runoff can contribute to water
contamination from sources such as
road salt, fertilizers, or pesticides.
https://alanhamr.weebly.com/water-erosion.html
-
EVALUATE: WATER RUNOFF,POLLUTION, AND EROSION
Create a model of the system of water runoff and erosion.
Key:
Notebook = Ground
Paperclips = Soil
Magnetic Water = Rain
Construction Paper = Ground Cover
NGSS Execution:
Give the students the items and let them come
up with their own model.
-
WATER RUNOFF,POLLUTION, AND EROSION
• Ground cover and other buffers help to prevent erosion and filter excess
nutrients before reaching rivers and lakes.
http://cahnrs.wsu.edu/news-release/2015/02/04/conservation-buffers-
please-the-eye-protect-the-landscape-says-wsu-researcher/https://www.pinterest.com/pin/172755335688464209/
-
Students may incorporate ground covers and buffers to investigate the
effect on erosion and water runoff.
EVALUATE: WATER RUNOFF,POLLUTION, AND EROSION
-
THANK YOU!
HOW CAN I GET THESE GREAT MODELS?
PURCHASE from 3D Molecular Designs:
https://www.3dmoleculardesigns.com/Education-Products.htm
Be sure to use your 20% show special discount code: SC19
BORROW from the Model Lending Library:
http://cbm.msoe.edu/lendingLibrary/index.php
https://www.3dmoleculardesigns.com/Education-Products.htmhttp://cbm.msoe.edu/lendingLibrary/index.php
-
THANK YOU!
FOR MORE MOLECULAR ENVIRONMENTAL
STORIES. . .
COME VISIT US AT BOOTHS 1267 AND 1269!
WE HOPE TO SEE YOU SOON!