|Search||Hot Links||What's New!|
Please let me remind all of you--this
material is copyrighted. Though partially funded by NASA, it is still a private
site. Therefore, before using our materials in any form, electronic or otherwise, you need
to ask permission.
There are two ways to browse the site: (1) use the search button above to find specific materials using keywords; or,
(2) go to specific headings like history, principles or careers at specific levels above and click on the button.
Teachers may go directly to the Teachers' Guide from the For Teachers button above or site browse as in (1) and (2).
In one tin can put a mixture of ice and salt, in the other can put only ice.
Note the frost forming on the outside of the can with the ice and salt mixture. Compare this with the liquid moisture on the outside of the can which contains ice only.
Compare the temperatures of the contents of the two cans, noting that the cooler temperature causes moisture to condense in a solid form.
Send all comments to firstname.lastname@example.org
© 1995-2017 ALLSTAR Network. All rights reserved worldwide.
Updated: March 12, 2004