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It would take a little more preperation, but you could cast a trophy out of some Woods metal ( melting point around 70 degrees C which a dark pavement in full sun can reach)
some other alloys ( woods is mostly bismuth, with lead and tin) have melting points down to mid 40 degrees C
(http://www.reade.com/products/4-alloys-metal-inorganic-powder-sheet-a-wire/822-woods-metal-alloy-cerro-bend-onions-fusible-alloy-woods-metal-fusible-alloy-bismuthleadtincadmium-alloy-bendalloy-pewtalloy-sn-pb-bi-cd-lipowitzs-alloy-cas-8049-22-70
in an Australian summer I'd even be tempted to cast a small dog from the alloy, and use the sad image of it melting to remind people not to leave pets ( or children) in cars with windows up...
HAVE FUN
Stuart Kohlhagen
Manager research and development
Questacon
The National Science and technology centre Canberra Australia
-----Original Message-----
From: Informal Science Education Network [mailto:[log in to unmask]] On Behalf Of Becky Matthews
Sent: Tuesday, 26 July 2011 7:18 AM
To: [log in to unmask]
Subject: Re: Patterns and Melting
ISEN-ASTC-L is a service of the Association of Science-Technology Centers Incorporated, a worldwide network of science museums and related institutions.
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You can also add food coloring to the top of a block of ice to see the melting process better. Sprinkle salt on a block of ice to compare to one without salt. Place one block of ice on a square of insulation and another block of ice on a square of aluminum to compare (similar to the small black ice melting blocks you can purchase.) Put some items in a solar cooker to compare melting at even hotter temperatures.
Becky Fox Matthews
Senior Educator/Special Projects Manager Adventure Science Center 800 Ft. Negley Blvd.
Nashville, TN 37203
615-401-5073
Our Mission
Adventure Science Center ignites curiosity and inspires the lifelong discovery of science.
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