15. Higher Order Thinking Questions

Reasons:

 

Pressure is indirectly proportionaldirectly proportional to the temperature at the bottom of a water body is lowhigh compared to the pressure at the surface. Due to the high pressurelow pressure at the bottom, the temperature at the bottom of the lake is comparatively lowhigh.

 

Ice is less densehigh dense than water; thus, it floats on the surface of the water, and it does not staydoes stay at the bottom of the lake.

 

Steel is a medium thermal conductorgood thermal conductor least thermal conductivity due to the covalent bonds between the atomstightly packed atoms and free electrons to conduct the heat in the form of kinetic energy.

 

Water is a least thermal conductivitymedium thermal conductorgood thermal conductor as first water will absorb heat than conduct itwill conduct heat than absorb it.

 

Wood has the least thermal conductivitygood thermal conductor medium thermal conductor because of the tightly packed atoms and free electrons covalent bonds between the atoms of the wood.