Notices
Results 1 to 2 of 2

Thread: What's this material ?

  1. #1 What's this material ? 
    New Member
    Join Date
    Jul 2005
    Posts
    1
    I found this on a website :

    This is an awesome discrepant event for your most advanced 'density' students! When this solid white object is placed in water, it initially sinks. Wait about 60 seconds, and it mysteriously floats to the surface. When removed and placed in different water, it continues to float initially and, in about 60 seconds, mysteriously sinks. Why? How can this be? Great for demonstrating how temperature can affect an object's density! In the experiment described above, the first beaker contained hot water from the tap; the second beaker contained ice water.

    Does anybody knows which material is used ?

    I know that it's a plastic but which one ???

    LOLA.


    The French one !


    Reply With Quote  
     

  2.  
     

  3. #2  
    Forum Sophomore vslayer's Avatar
    Join Date
    Apr 2005
    Location
    new zealand
    Posts
    121
    are you sure its a plastic, i think cartiledge(sp?) has about the right density for that


    and so the balance of power shifts...
    Reply With Quote  
     

Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •