TEACHER'S CHOICE! BEST SELLER!
Popular Primary Schools Resource! 
 
 
An interesting method of proving the difference in heat conductivity in different metals.
Place an ice cube on each of the two black blocks at room temperature and watch as one ice cube melts faster.
The black blocks look the same but one is made of aluminum and the other is made of plastic foam.
Set shows how aluminum is good conductor of heat, while the foam is not.