Embed Size (px)
Citation preview
International Polar Year
Marjorie Porter, Somers High School Mary Anne Butler, CSDE
Program Goals
• Familiarize participants with International Polar Year (IPY)
• Demonstrate connections between polar research and the CT Framework
• Practice inquiry activities with IPY emphasis
• Provide resources for your classroom
International Polar Year (IPY) 2007-2008• Coordinate a campaign of polar
research
• Initiate a new era of polar research
• Emphasize the connection between the polar regions and the rest of the globe
• Educate the next generation
Connecticut Science FrameworkContent Connections
Strand One: Energy TransformationsStrand Three: Global Interdependence
Inquiry Connections
Laboratory inquiryScience, Technology and Society (STS)Literature inquiry
Energy Transfer & Transformations
• Describe the effects of adding energy Describe the effects of adding energy to matter in terms of motion of to matter in terms of motion of atoms and molecules, and the atoms and molecules, and the resulting phase changes.resulting phase changes.
• Explain how energy is transferred by Explain how energy is transferred by conduction, convection and radiation.conduction, convection and radiation.
Assess Prior Knowledge•Micro Lab Protocol
– Group students in triadsGroup students in triads– Assign each student a number 1-3Assign each student a number 1-3– Choose one question/person to addressChoose one question/person to address– Think in silence for 1 minuteThink in silence for 1 minute– Respond in turn for 1 minute uninterruptedRespond in turn for 1 minute uninterrupted
Choose one question
• What is the difference between heat What is the difference between heat and temperature?and temperature?
• What influences the thermal What influences the thermal conductivity of a material?conductivity of a material?
• How are heat and temperature related?How are heat and temperature related?
How can we test this idea?
Introduction to Heat Flux
• 4 “warm up” demonstrations4 “warm up” demonstrations
• Student observations/explanationsStudent observations/explanations
• Extensions to IPYExtensions to IPY
Countdown to meltdown!
Balloon Demo
Flipping Your Lid
An Under Cover Operation
Thermal Conductivity
Heat will flow from an object with higher thermal energy to another of
lower thermal energy.
The rate at which heat will flow between two
objects varies, and depends on many
factors: Temperature
differenceComposition
Proximity to each other
What Have We Learned?
•Heat moves from an area of high thermal energy to an area of low thermal energy
•Different materials transfer heat at different rates
•Heat transfer takes place by conduction, convection and radiation
International Polar Year: What’s the
connection?
Jigsaw Activity
• Select a candy and group yourselvesSelect a candy and group yourselves
• Read the title of the articleRead the title of the article
• Jot down what you know about the Jot down what you know about the subject on graphic organizersubject on graphic organizer
• Skim the article and record new ideasSkim the article and record new ideas
• Share out your learning with mixed Share out your learning with mixed groups groups
• Record new ideasRecord new ideas
Differentiate the Articles
• Vary entry level of readingVary entry level of reading
• Allow self selection of materialAllow self selection of material
• Micro lab as pre-reading or post-Micro lab as pre-reading or post-reading activityreading activity
• Provide a variety of graphic Provide a variety of graphic organizers for organizers for pre-reading/reading/post-reading pre-reading/reading/post-reading thoughtsthoughts
Arctic Inquiry Investigations
How can we study the impact of How can we study the impact of global global
climate change in the Arctic?climate change in the Arctic?
Measuring Heat Flux
The density of the snow affects its insulating properties.
Our Spatula & Cylinder Sampling theSnow
Moving the Sample to be Stored Calculating Density
powdery snow vs. packing snow
Differences in Snow Densities
What happens when water loses heat to surrounding
materials below 0o C ?
It Freezes!
Impact to the Environment
• What effect does climate change have on What effect does climate change have on ice growth?ice growth?
• What effect does change in ice growth have What effect does change in ice growth have on the Arctic environment?on the Arctic environment?
• What impact does this have on humans?What impact does this have on humans?
• ALISON websiteALISON website
http://www.gi.alaska.edu/alison/ALISON_SITES_Map.html
Seasonal Ice Growth and Snow Depth (m)
Wasilla, 2005-06
http://www.gi.alaska.edu/alison/index.html
Poker Flat Research Range, 2005-06
Seasonal Ice Growth and Snow Depth (m)
http://www.gi.alaska.edu/alison/index.html
Barrow, 2005-06
Seasonal Ice Growth and Snow Depth (m)
http://www.gi.alaska.edu/alison/index.html
Is it true, or just a lot of hot air?
Let’s look at what is going on in Let’s look at what is going on in Connecticut!Connecticut!
www.ctclimatechange.com
www.ct.climatechange.com
Political Cartoons and the Inquiry Standards
The CT Science Framework• Strand III: Expected Performance D 23.
– Explain how the accumulation of carbon dioxide in the atmosphere increases Earth’s “greenhouse effect” and may cause climate change.
• Inquiry Standards: Expected Performance D INQ.2 – Read, interpret and examine the credibility and validity
of scientific claims in different sources of information.
http://www.somers.k12.ct.us/%7Emporter/index.html
The End… or Just the Beginning?
