Miracle Thaw [Virtual Demonstration]
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The bundle opens with a virtual demonstration of thermoscopes and a discussion of temperature scales. Next we have the classic ball and ring thermal expansion demonstration guide, followed by a demonstration to see the difference between hot and cold in a couple of ways.The Mechanical Universe's "TePrice $36.99Original Price $54.24Save $17.25
Description
The Miracle Thaw was a heavily marketed "As Seen on TV" defrosting tray some years ago. The infomercial ads portrayed seemingly miraculous thawing capabilities, but ut seemed to be just a black painted metal tray.
Here we put the Miracle Thaw to the test, placing it in competition with a silvered (foil-wrapped) Miracle Thaw and a black Styrofoam surface. Which one really can melt ice the fastest? And why?
This is a nice way to review principles of conduction and thermal radiation via a practical application.
It's always preferable to do demonstrations in person, but the included presentation with video of the demonstration can be used for remote teaching/distance learning (RT'DL). The Miracle Thaw, itself, may not be available anymore. But defrosting trays remain on the market. Science supplier, Arbor Scientific, offers small-scale Ice Melting Blocks that allow you to make this tabletop hands-on experiment for students.
Includes
Student document (print-friendly Google Docs file on Google Drive)
Instructional presentation (link embedded in answer key)
Answer key
