Subject :Chemistry Class : Class 6
Case Study :
Substances expand when we heat them
and contract on cooling. Solids, liquids and gases,
all the three states of matter expands on heating.
Gases expands the most while solid expands the
least. Liquid mercury also expands on heating and
this process is used in thermometer.
Which of the following materials does not expand on heating?
A Iron
B Wood
C Glass
D Ghee
I attempted B but it is showing that I attempted A.